"Mathematical Error" Credit Card Error on Stand-In
"Mathematical check (mod10/luhn) on the account number has failed. Possible Typo."
This occurs when a credit card number is manually entered incorrectly while the site is offline or in Stand- In. The most common reason that a site is in Stand-In is an Internet Outage.
Mathematical Error
Unfortunately, you will need to contact the customer to get the correct card number
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