Credit card authorization services; Processing virtual credit card payments; Electronic credit card transaction processing; Credit card payment processing services; Credit card transaction processing services; Issuing credit cards; Providing electronic processing of credit card transactions and electronic payments via a global computer network; Issuing virtual credit cards for secure purchasing at online retail stores; Banking services; Internet banking services; Banking and financing services; Loyalty program payment processing services; Providing cash and other rebates for credit card use as part of a customer loyalty program