When paying by credit card, you must provide the Vcode and credit card billing address with your order.  

Vcode
The Credit Card Association now supports the Card Verification 2 Security Code (Vcode), a fraud mitigation feature. As a merchant, Mountain Flying is required to obtain this code.

Visa and MasterCard display a 3-digit code on the back of the card in the signature block at the end of the regular account number.


The Vcode value helps validate that:

The Vcode is printed only on the back of the card—it is not contained in the magnetic stripe information nor does it appear on sales receipts.