What is CVV or DC ?
The CVV Number is required for American Express, VisaCard and MasterCard. The CVV (or Card ID) is an added security feature to help protect you against online fraud. In this case Card ID is same as CVV. Click here for more info about CVV. The DC Number is required for Diners Club International as a Card Identification Number (or Card ID). The DC is an added security feature to help protect you against online fraud. In this case Card ID is same as DC. Click here for more info about DC.