When I enter a test number for the credit card number on the demo page, the cart gives me an error. Can I test it without using a real number?
A3: You have run into one of our tools that keep you from submitting erroneous charges. We run a mathematical checksum calculation on each card number to insure that it is a valid number. To run tests, use 4111 1111 1111 1111 Visa. This is a mathematically valid charge number, and we do not specifically screen them out.
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