We accept the following credit cards thru Google Checkout and PayPal: Visa, MasterCard, and American Express. We also accept direct credit card orders by phone at 301-570-0774. There is no surcharge for using your credit card to make purchases. Please be sure to provide your exact billing address and telephone number (i.e. the address and phone number your credit card bank has on file for you). Incorrect information will cause a delay in processing your order. Your credit card will be billed upon shipment of your order.