Visa/MasterCard
Requirements
Card Validation Code
The 3-digit, non-embossed number
printed on the signature panel on the back of the
card immediately following the credit card account
number. This number is required as an additional
security precaution.
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American
Express Requirements
Card Validation Code
The
4-digit, non-embossed number printed above your account
number on the front of your card. This number is required
as an additional security precaution.
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