Credit Cards - We are pleased to accept major credit cards. To process the card we will need, Cardholders Name, Address to which the card is billed, Cardholders Phone Number, Card Type and Number. Expiration Date and CVV Code. The CVV code is a 3 digit number on the back of MasterCard, VISA and Discover cards. It is a 3 or 4 digit code on the front of American Express Cards. We recommend that credit card information be sent by fax or over the phone as email is not secure. Your credit card will be processed by Kaeser & Blair, whose name and 800 number will be shown on your credit card statement.