diff --git a/EpcQrCode/src/commonMain/kotlin/net/codinux/banking/epcqrcode/EpcQrCodeConfig.kt b/EpcQrCode/src/commonMain/kotlin/net/codinux/banking/epcqrcode/EpcQrCodeConfig.kt
index b08a035..20e40ca 100644
--- a/EpcQrCode/src/commonMain/kotlin/net/codinux/banking/epcqrcode/EpcQrCodeConfig.kt
+++ b/EpcQrCode/src/commonMain/kotlin/net/codinux/banking/epcqrcode/EpcQrCodeConfig.kt
@@ -30,4 +30,11 @@ open class EpcQrCodeConfig(
 
     open val amount: String? = ensureAmountFormat(amount)
 
+
+    // convenience constructors for languages not supporting default values (like Swift and JavaScript)
+
+    constructor(receiverName: String, iban: String, amount: String?, reference: String?) : this(receiverName, iban, null, amount, reference)
+
+    constructor(receiverName: String, iban: String, bic: String?, amount: String?, reference: String?) : this(receiverName, iban, bic, amount, reference, null)
+
 }
\ No newline at end of file