diff --git a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForCustomer.kt b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForUser.kt
similarity index 97%
rename from BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForCustomer.kt
rename to BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForUser.kt
index 88e50bae..ee3f9f5d 100644
--- a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForCustomer.kt
+++ b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForUser.kt
@@ -5,7 +5,7 @@ import net.codinux.banking.client.model.options.RetrieveTransactions
 import net.codinux.banking.client.model.response.GetAccountDataResponse
 import net.codinux.banking.client.model.response.Response
 
-interface BankingClientForCustomer {
+interface BankingClientForUser {
 
     /**
      * Retrieves account data like customer name, her bank accounts, their balance and account transactions.
diff --git a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForCustomerBase.kt b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForUserBase.kt
similarity index 86%
rename from BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForCustomerBase.kt
rename to BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForUserBase.kt
index 9d447d9d..cf9ac42c 100644
--- a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForCustomerBase.kt
+++ b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BankingClientForUserBase.kt
@@ -4,10 +4,10 @@ import net.codinux.banking.client.model.AccountCredentials
 import net.codinux.banking.client.model.options.GetAccountDataOptions
 import net.codinux.banking.client.model.request.GetAccountDataRequest
 
-abstract class BankingClientForCustomerBase(
+abstract class BankingClientForUserBase(
     protected val credentials: AccountCredentials,
     protected val client: BankingClient
-) : BankingClientForCustomer {
+) : BankingClientForUser {
 
     override suspend fun getAccountDataAsync(options: GetAccountDataOptions) =
         client.getAccountDataAsync(GetAccountDataRequest(credentials, options))
diff --git a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForCustomer.kt b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForUser.kt
similarity index 91%
rename from BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForCustomer.kt
rename to BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForUser.kt
index f8312267..59917d28 100644
--- a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForCustomer.kt
+++ b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForUser.kt
@@ -4,7 +4,7 @@ import net.codinux.banking.client.model.options.GetAccountDataOptions
 import net.codinux.banking.client.model.response.GetAccountDataResponse
 import net.codinux.banking.client.model.response.Response
 
-interface BlockingBankingClientForCustomer {
+interface BlockingBankingClientForUser {
 
     // for languages not supporting default parameters (Java, Swift, JS, ...)
     fun getAccountData() = getAccountData(GetAccountDataOptions())
diff --git a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForCustomerBase.kt b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForUserBase.kt
similarity index 83%
rename from BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForCustomerBase.kt
rename to BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForUserBase.kt
index 74b28879..cc708875 100644
--- a/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForCustomerBase.kt
+++ b/BankingClient/src/commonMain/kotlin/net/codinux/banking/client/BlockingBankingClientForUserBase.kt
@@ -4,10 +4,10 @@ import net.codinux.banking.client.model.AccountCredentials
 import net.codinux.banking.client.model.options.GetAccountDataOptions
 import net.codinux.banking.client.model.request.GetAccountDataRequest
 
-abstract class BlockingBankingClientForCustomerBase(
+abstract class BlockingBankingClientForUserBase(
     protected val credentials: AccountCredentials,
     protected val client: BlockingBankingClient
-) : BlockingBankingClientForCustomer {
+) : BlockingBankingClientForUser {
 
     override fun getAccountData(options: GetAccountDataOptions) =
         client.getAccountData(GetAccountDataRequest(credentials, options))
diff --git a/BankingClient/src/jvmMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt b/BankingClient/src/jvmMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt
index b8738b14..1a48dd09 100644
--- a/BankingClient/src/jvmMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt
+++ b/BankingClient/src/jvmMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt
@@ -12,10 +12,10 @@ fun BankingClient.getAccountData(request: GetAccountDataRequest) = runBlocking {
     this@getAccountData.getAccountDataAsync(request)
 }
 
-fun BankingClientForCustomer.getAccountData() = runBlocking {
+fun BankingClientForUser.getAccountData() = runBlocking {
     this@getAccountData.getAccountDataAsync()
 }
 
-fun BankingClientForCustomer.getAccountData(options: GetAccountDataOptions) = runBlocking {
+fun BankingClientForUser.getAccountData(options: GetAccountDataOptions) = runBlocking {
     this@getAccountData.getAccountDataAsync(options)
 }
\ No newline at end of file
diff --git a/BankingClient/src/nativeMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt b/BankingClient/src/nativeMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt
index b8738b14..1a48dd09 100644
--- a/BankingClient/src/nativeMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt
+++ b/BankingClient/src/nativeMain/kotlin/net/codinux/banking/client/BankingClientExtensions.kt
@@ -12,10 +12,10 @@ fun BankingClient.getAccountData(request: GetAccountDataRequest) = runBlocking {
     this@getAccountData.getAccountDataAsync(request)
 }
 
-fun BankingClientForCustomer.getAccountData() = runBlocking {
+fun BankingClientForUser.getAccountData() = runBlocking {
     this@getAccountData.getAccountDataAsync()
 }
 
-fun BankingClientForCustomer.getAccountData(options: GetAccountDataOptions) = runBlocking {
+fun BankingClientForUser.getAccountData(options: GetAccountDataOptions) = runBlocking {
     this@getAccountData.getAccountDataAsync(options)
 }
\ No newline at end of file
diff --git a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/CustomerAccount.kt b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/UserAccount.kt
similarity index 96%
rename from BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/CustomerAccount.kt
rename to BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/UserAccount.kt
index 5a3a915a..a174144a 100644
--- a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/CustomerAccount.kt
+++ b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/UserAccount.kt
@@ -7,7 +7,7 @@ import net.codinux.banking.client.model.tan.TanMethod
 
 @Suppress("RUNTIME_ANNOTATION_NOT_SUPPORTED")
 @NoArgConstructor
-open class CustomerAccount( // TODO: is actually a UserAccount
+open class UserAccount(
     val bankCode: String,
     var loginName: String,
     /**
diff --git a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/CustomerAccountViewInfo.kt b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/UserAccountViewInfo.kt
similarity index 58%
rename from BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/CustomerAccountViewInfo.kt
rename to BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/UserAccountViewInfo.kt
index f58cf9e2..aed6574a 100644
--- a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/CustomerAccountViewInfo.kt
+++ b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/UserAccountViewInfo.kt
@@ -3,11 +3,11 @@ package net.codinux.banking.client.model
 import net.codinux.banking.client.model.config.NoArgConstructor
 
 /**
- * Contains only the basic info of a [CustomerAccount], just enough that a client application can display it to the user
- * and the user knows exactly which [CustomerAccount] is meant / referred.
+ * Contains only the basic info of a [UserAccount], just enough that a client application can display it to the user
+ * and the user knows exactly which [UserAccount] is meant / referred.
  */
 @NoArgConstructor
-open class CustomerAccountViewInfo(
+open class UserAccountViewInfo(
     val bankCode: String,
     var loginName: String,
     val bankName: String,
diff --git a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/response/GetAccountDataResponse.kt b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/response/GetAccountDataResponse.kt
index 3c7a26ba..54e74102 100644
--- a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/response/GetAccountDataResponse.kt
+++ b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/response/GetAccountDataResponse.kt
@@ -1,20 +1,20 @@
 package net.codinux.banking.client.model.response
 
 import net.codinux.banking.client.model.AccountTransaction
-import net.codinux.banking.client.model.CustomerAccount
+import net.codinux.banking.client.model.UserAccount
 import net.codinux.banking.client.model.config.JsonIgnore
 import net.codinux.banking.client.model.config.NoArgConstructor
 
 @Suppress("RUNTIME_ANNOTATION_NOT_SUPPORTED")
 @NoArgConstructor
 open class GetAccountDataResponse(
-    val customer: CustomerAccount
+    val user: UserAccount
 ) {
 
     @get:JsonIgnore
     val bookedTransactions: List<AccountTransaction>
-        get() = customer.accounts.flatMap { it.bookedTransactions }.sortedByDescending { it.valueDate }
+        get() = user.accounts.flatMap { it.bookedTransactions }.sortedByDescending { it.valueDate }
 
 
-    override fun toString() = customer.toString()
+    override fun toString() = user.toString()
 }
\ No newline at end of file
diff --git a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanChallenge.kt b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanChallenge.kt
index 8d13b3d4..980daa71 100644
--- a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanChallenge.kt
+++ b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanChallenge.kt
@@ -1,8 +1,8 @@
 package net.codinux.banking.client.model.tan
 
 import net.codinux.banking.client.model.BankAccountViewInfo
-import net.codinux.banking.client.model.CustomerAccount
-import net.codinux.banking.client.model.CustomerAccountViewInfo
+import net.codinux.banking.client.model.UserAccount
+import net.codinux.banking.client.model.UserAccountViewInfo
 import net.codinux.banking.client.model.config.JsonIgnore
 import net.codinux.banking.client.model.config.NoArgConstructor
 
@@ -21,10 +21,10 @@ open class TanChallenge(
      */
     val selectedTanMethodId: String,
     /**
-     * When adding an account, frontend has no Customer object in BankingClientCallback to know which TanMethods are
-     * available for Customer.
+     * When adding an account, frontend has no UserAccount object in BankingClientCallback to know which TanMethods are
+     * available for User.
      * Also on other calls to bank server, bank server may returned an updated list of available TanMethods, so that
-     * [CustomerAccount] may contains an outdated list of available TanMethods.
+     * [UserAccount] may contains an outdated list of available TanMethods.
      *
      * Therefore i added list with up to date TanMethods here to ensure EnterTanDialog can display user's up to date TanMethods.
      */
@@ -41,7 +41,7 @@ open class TanChallenge(
 
     val tanImage: TanImage? = null,
     val flickerCode: FlickerCode? = null,
-    val customer: CustomerAccountViewInfo,
+    val user: UserAccountViewInfo,
     val account: BankAccountViewInfo? = null
 ) {
 
diff --git a/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4kBankingClientForCustomer.kt b/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4KBankingClientForUser.kt
similarity index 67%
rename from FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4kBankingClientForCustomer.kt
rename to FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4KBankingClientForUser.kt
index e9256d28..29cce5f3 100644
--- a/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4kBankingClientForCustomer.kt
+++ b/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4KBankingClientForUser.kt
@@ -1,12 +1,12 @@
 package net.codinux.banking.client.fints4k
 
 import net.codinux.banking.client.BankingClientCallback
-import net.codinux.banking.client.BankingClientForCustomerBase
+import net.codinux.banking.client.BankingClientForUserBase
 import net.codinux.banking.client.model.AccountCredentials
 import net.codinux.banking.fints.config.FinTsClientConfiguration
 
-open class FinTs4kBankingClientForCustomer(credentials: AccountCredentials, config: FinTsClientConfiguration = FinTsClientConfiguration(), callback: BankingClientCallback)
-    : BankingClientForCustomerBase(credentials, FinTs4kBankingClient(config, callback)) {
+open class FinTs4KBankingClientForUser(credentials: AccountCredentials, config: FinTsClientConfiguration = FinTsClientConfiguration(), callback: BankingClientCallback)
+    : BankingClientForUserBase(credentials, FinTs4kBankingClient(config, callback)) {
 
     constructor(bankCode: String, loginName: String, password: String, callback: BankingClientCallback)
         : this(bankCode, loginName, password, FinTsClientConfiguration(), callback)
diff --git a/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4kMapper.kt b/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4kMapper.kt
index 5708dfff..8352f3c9 100644
--- a/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4kMapper.kt
+++ b/FinTs4jBankingClient/src/commonMain/kotlin/net/codinux/banking/client/fints4k/FinTs4kMapper.kt
@@ -47,14 +47,14 @@ open class FinTs4kMapper {
 
     open fun map(response: net.dankito.banking.client.model.response.GetAccountDataResponse): Response<GetAccountDataResponse> {
         return if (response.successful && response.customerAccount != null) {
-            Response.success(GetAccountDataResponse(mapCustomer(response.customerAccount!!)))
+            Response.success(GetAccountDataResponse(mapUser(response.customerAccount!!)))
         } else {
             mapError(response)
         }
     }
 
 
-    open fun mapToCustomerAccountViewInfo(bank: BankData): CustomerAccountViewInfo = CustomerAccountViewInfo(
+    open fun mapToUserAccountViewInfo(bank: BankData): UserAccountViewInfo = UserAccountViewInfo(
         bank.bankCode, bank.customerId, bank.bankName, getBankingGroup(bank.bankName, bank.bic)
     )
 
@@ -65,22 +65,22 @@ open class FinTs4kMapper {
     )
 
 
-    protected open fun mapCustomer(customer: net.dankito.banking.client.model.CustomerAccount): CustomerAccount = CustomerAccount(
-        customer.bankCode, customer.loginName, customer.password,
-        customer.bankName, customer.bic, customer.customerName, customer.userId,
-        customer.accounts.map { mapAccount(it) },
+    protected open fun mapUser(user: net.dankito.banking.client.model.CustomerAccount) = UserAccount(
+        user.bankCode, user.loginName, user.password,
+        user.bankName, user.bic, user.customerName, user.userId,
+        user.accounts.map { mapAccount(it) },
 
-        customer.selectedTanMethod?.securityFunction?.code, customer.tanMethods.map { mapTanMethod(it) },
-        customer.selectedTanMedium?.mediumName, customer.tanMedia.map { mapTanMedium(it) },
+        user.selectedTanMethod?.securityFunction?.code, user.tanMethods.map { mapTanMethod(it) },
+        user.selectedTanMedium?.mediumName, user.tanMedia.map { mapTanMedium(it) },
 
-        getBankingGroup(customer.bankName, customer.bic)
+        getBankingGroup(user.bankName, user.bic)
     )
 
     protected open fun getBankingGroup(bankName: String, bic: String): BankingGroup? =
         bankingGroupMapper.getBankingGroup(bankName, bic)
 
 
-    protected open fun mapAccount(account: net.dankito.banking.client.model.BankAccount): BankAccount = BankAccount(
+    protected open fun mapAccount(account: net.dankito.banking.client.model.BankAccount) = BankAccount(
         account.identifier, account.accountHolderName, mapAccountType(account.type), account.iban, account.subAccountNumber,
         account.productName, account.currency, account.accountLimit, account.isAccountTypeSupportedByApplication,
         mapFeatures(account),
@@ -146,13 +146,13 @@ open class FinTs4kMapper {
         val tanMedia = challenge.bank.tanMedia.map { mapTanMedium(it) }
         val selectedTanMediumName = challenge.bank.selectedTanMedium?.mediumName
 
-        val customer = mapToCustomerAccountViewInfo(challenge.bank)
+        val user = mapToUserAccountViewInfo(challenge.bank)
         val account = challenge.account?.let { mapToBankAccountViewInfo(it) }
 
         val tanImage = if (challenge is ImageTanChallenge) mapTanImage(challenge.image) else null
         val flickerCode = if (challenge is FlickerCodeTanChallenge) mapFlickerCode(challenge.flickerCode) else null
 
-        return TanChallenge(type, action, challenge.messageToShowToUser, selectedTanMethodId, tanMethods, selectedTanMediumName, tanMedia, tanImage, flickerCode, customer, account)
+        return TanChallenge(type, action, challenge.messageToShowToUser, selectedTanMethodId, tanMethods, selectedTanMediumName, tanMedia, tanImage, flickerCode, user, account)
     }
 
     protected open fun mapTanChallengeType(challenge: net.codinux.banking.fints.model.TanChallenge): TanChallengeType = when {
diff --git a/FinTs4jBankingClient/src/commonTest/kotlin/net/codinux/banking/client/fints4k/FinTs4kBankingClientTest.kt b/FinTs4jBankingClient/src/commonTest/kotlin/net/codinux/banking/client/fints4k/FinTs4kBankingClientTest.kt
index 07c3b4f9..b4865f29 100644
--- a/FinTs4jBankingClient/src/commonTest/kotlin/net/codinux/banking/client/fints4k/FinTs4kBankingClientTest.kt
+++ b/FinTs4jBankingClient/src/commonTest/kotlin/net/codinux/banking/client/fints4k/FinTs4kBankingClientTest.kt
@@ -19,7 +19,7 @@ class FinTs4kBankingClientTest {
     }
 
 
-    private val underTest = FinTs4kBankingClientForCustomer(bankCode, loginName, password, SimpleBankingClientCallback { customer, tanChallenge ->
+    private val underTest = FinTs4KBankingClientForUser(bankCode, loginName, password, SimpleBankingClientCallback { tanChallenge, callback ->
 
     })
 
diff --git a/README.md b/README.md
index 76777a2e..ea43134c 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ class ShowUsage {
 
 
     fun getAccountData() {
-        val client = FinTs4kBankingClientForCustomer(bankCode, loginName, password, SimpleBankingClientCallback())
+        val client = FinTs4kBankingClientForUser(bankCode, loginName, password, SimpleBankingClientCallback())
 
         val response = client.getAccountData()
 
@@ -61,12 +61,12 @@ class ShowUsage {
 
     private fun printReceivedData(response: Response<GetAccountDataResponse>) {
         response.data?.let { data ->
-            val customer = data.customer
-            println("Kunde: ${customer.customerName} ${customer.accounts.size} Konten @ ${customer.bic} ${customer.bankName}")
+            val user = data.user
+            println("Kunde: ${user.customerName} ${user.accounts.size} Konten @ ${user.bic} ${user.bankName}")
 
             println()
             println("Konten:")
-            customer.accounts.sortedBy { it.type }.forEach { account ->
+            user.accounts.sortedBy { it.type }.forEach { account ->
                 println("${account.identifier} ${account.productName} ${account.balance} ${account.currency}")
             }
 
@@ -85,7 +85,7 @@ This fetches the booked account transactions of the last 90 days. In most cases
 In case there is, add TAN handling in Client Callback:
 
 ```kotlin
-val client = FinTs4kBankingClientForCustomer(bankCode, loginName, password, SimpleBankingClientCallback { tanChallenge, callback ->
+val client = FinTs4kBankingClientForUser(bankCode, loginName, password, SimpleBankingClientCallback { tanChallenge, callback ->
     val tan: String? = null // if a TAN is required, add a UI or ...
     callback.invoke(EnterTanResult(tan)) // ...  set a break point here, get TAN e.g. from your TAN app, set tan variable in debugger view and resume debugger
 })
diff --git a/SampleApp/src/main/kotlin/net/codinux/banking/client/fints4k/example/ShowUsage.kt b/SampleApp/src/main/kotlin/net/codinux/banking/client/fints4k/example/ShowUsage.kt
index 07edbf62..d19e7137 100644
--- a/SampleApp/src/main/kotlin/net/codinux/banking/client/fints4k/example/ShowUsage.kt
+++ b/SampleApp/src/main/kotlin/net/codinux/banking/client/fints4k/example/ShowUsage.kt
@@ -2,7 +2,7 @@ package net.codinux.banking.client.fints4k.example
 
 import kotlinx.datetime.LocalDate
 import net.codinux.banking.client.SimpleBankingClientCallback
-import net.codinux.banking.client.fints4k.FinTs4kBankingClientForCustomer
+import net.codinux.banking.client.fints4k.FinTs4kBankingClientForUser
 import net.codinux.banking.client.getAccountData
 import net.codinux.banking.client.model.options.GetAccountDataOptions
 import net.codinux.banking.client.model.options.RetrieveTransactions
@@ -27,7 +27,7 @@ class ShowUsage {
 
 
     fun getAccountDataSimpleExample() {
-        val client = FinTs4kBankingClientForCustomer(bankCode, loginName, password, SimpleBankingClientCallback())
+        val client = FinTs4kBankingClientForUser(bankCode, loginName, password, SimpleBankingClientCallback())
 
         val response = client.getAccountData()
 
@@ -35,7 +35,7 @@ class ShowUsage {
     }
 
     fun getAccountDataFullExample() {
-        val client = FinTs4kBankingClientForCustomer(bankCode, loginName, password, SimpleBankingClientCallback { tanChallenge, callback ->
+        val client = FinTs4kBankingClientForUser(bankCode, loginName, password, SimpleBankingClientCallback { tanChallenge, callback ->
             val tan: String? = null // if a TAN is required, add a UI or ...
             callback.invoke(EnterTanResult(tan)) // ...  set a break point here, get TAN e.g. from your TAN app, set tan variable in debugger view and resume debugger
         })
@@ -59,12 +59,12 @@ class ShowUsage {
 
     private fun printReceivedData(response: Response<GetAccountDataResponse>) {
         response.data?.let { data ->
-            val customer = data.customer
-            println("Kunde: ${customer.customerName} ${customer.accounts.size} Konten @ ${customer.bic} ${customer.bankName}")
+            val user = data.user
+            println("Kunde: ${user.customerName} ${user.accounts.size} Konten @ ${user.bic} ${user.bankName}")
 
             println()
             println("Konten:")
-            customer.accounts.sortedBy { it.type }.forEach { account ->
+            user.accounts.sortedBy { it.type }.forEach { account ->
                 println("${account.identifier} ${account.productName} ${account.balance} ${account.currency}")
             }