You can use the following credit cards at Trt30.com: Visa MasterCard Card Discover American Express JCB When an order is sent using a card payment, we authorize the amount with your bank, but no money is withdrawn from the account. While the funds may appear outside your available balance, they have not entered our account, your bank has put the funds on hold. Once an order is sent, the authorization is resolved and the funds enter our account. If for some reason your order is not sent and the order is canceled, it may take several days for your bank to return the funds to your account. If your card is declined, we suggest that you verify that the card information and billing address have been entered correctly and try again. If the card is declined again, you may need to contact your credit card company or the issuing bank for more information. Note: To protect against fraud, orders suspected of being fraudulent are canceled and payment is canceled. Discover and JCB cards are only available to national customers. For the safety of our customers, any international order of more than $ 25,000 USD must be made through a secure payment method.