Hi, I am running some test purchases submitting an improper cvv code, this gives me a declined message as it should. Then i change the cvv and it gives me:
Response: [Code 3] - Error, Reason: [Code 11] - A duplicate transaction has been submitted.
I change it again and it gives me the same thing.
The documentation states as long as an element is changed this should not happen, any idea what is going on?