'Declaration

<DescriptionAttribute("Payment reference.")>
Public Property PaymentReference As String

[Description("Payment reference.")]
public string PaymentReference { get; set; }

[Description("Payment reference.")]
public: __property string* get_PaymentReference();
public: __property void set_PaymentReference(
   string* value
);

[Description("Payment reference.")]
public:
property string^ PaymentReference {
   string^ get();
   void set(string^ value);
}

QR reference: 27 characters, numeric, check sum calculation according to Modulo 10 recursive.
Creditor Reference (ISO 11649): maximum 25 characters, alphanumeric The element may not be filled for the NON reference type.
Banks do not distinguish between upper and lower case capitalization.