FAQ » History » Revision 7
Revision 6 (chin-yeh, 10/18/2011 10:00 AM) → Revision 7/13 (chin-yeh, 10/18/2011 10:00 AM)
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h1. FAQ
h2. General
h3. How to simulate a CVV matched payment
enter *999* in CVV field
h3. How to simulate a declined payment
* enter an amount less than *1.00*
* enter a invalid credit card number
h3. How NMI checks for duplicate transaction
A transaction is treated as duplicate when:
* submit same amount using the & same credit card within *20 minutes*
h3. No order ID returned
It happens when the result code is *3* or *300*