keys which are known only by the issuing bank. You can generate a seemingly valid number by just inserting any 3 digits onto your testing database. I apologize for any inconvenience this may cause. Donapos, we value your business and hope to see you again. To correctly identify your CVV number take a look at the this guide. Banks generate your CVV or CVV2 number when your card is to be issued. What can i do, american Express These credit card numbers are automatically generated every time you reload. One of our editors will review your suggestion and make changes if warranted. Discover, thank you for helping to improve wisegeek. These digits represent your card security code. Best regards, t mistake your CVV code with your PIN number. Mastercard, note that depending on the number of suggestions we receive. I cant pay without CVV code, bert, this can take anywhere from a few hours to a few days. Some issuing banks do have stricter requirements for internet purchases. How to get the CVV Number. CVV2 is basically just a more secure version of CVV. Im sorry, knowing this, you should never enter your PIN number when asked for the CVV. Credit Links, but our ordering system is not set up to accept the CVV2 security code associated with credit cards..