If you are using a Visa or MasterCard,
please provide the 3-digit CVV (Customer Verification Value). This is
the non-embossed number printed on the signature panel on the
back of the card immediately following the Visa or MC card account number.
If your credit card is an American Express card
please provide the 4-digit CID (Confidential Identifier Number). This is the
4 digit, non-embossed number printed above your account number
on the face of your card.