Using Refund with a processDate always fails

[abelbraaksma]

For example:

// ... other code
var processDate = DateTime.Today.AddDays(1);
// always throws
var refundResponse = PAYNLSDK.Transaction.Refund(transactionId, description, amountInCents, processDate, refundNotificationUrl);  

The problem appears to be with the date being formatted as YYYY-MM-DD, but the pay.nl server expects the Dutch format, DD-MM-YYYY.

[abelbraaksma]

@sebastianberm, I understand that this has been fixed now and that it has been tested? Shall I (or you) close this issue?