Select Payment method We currently accept Visa, Mastercard, Discover, and American Express, and we also accept checks for orders sent by mail. A word about credit card security. Release Software uses the most advanced credit card security available. Type in information about your credit card. Rest assured that this information is kept confidential. Your account number will not stored anywhere in your computer. The expiration date should be in MM/YY format. For example, if your card expires in January of 1996, you should fill in: 1/96.