Before you select a store,Always do a reality check.Reliable companies should advertise their business address and at least one phone number under site's "Contact Us" menu. Call and talk to a company representative and ask questions. The company should only require personal information that's necessary to complete the purchase. You will probably enter your credit card number, address, and telephone number. Be wary if they ask for other information such as your social security number, bank account numbers, or your mother's maiden name.