TSYSHCRetail Errors

501   Data field invalid length.
502   Data field invalid format.
503   Data field out of range.
504   Luhn digit check failed.
505   Card date invalid.
506   Card expired.
507   Card type unknown.
509   No gateway specified.
511   Invalid data entered.
512   Truncated response.
513   Invalid response.
517   Response length mismatch.
518   LRC check failed.
519   Corrupt response.
520   Response packet empty.
521   Response truncated.
522   Host disconnected.
523   No response from host.
524   Server error response.
526   Invalid timeout value.
527   Vital/TSYS returned an error response.
535   Signature verification failed.
544   Error building packet.
593   Missing or erroneous property value. Cannot send transaction.
594   Response received before transmission completed.
595   Prematurely disconnected (check Number and BankId).