Our web store only accepts VISA and MasterCard. Some banks will restrict transactions over a certain dollar amount. Some banks will also automatically decline online charges from outside your home country. If this happens you will have to contact your bank to authorize the transaction. Then you can either place another order, or contact us and we will process it for you. Note: If you used a MaxIm DL Coupon Code (for upgrades), these can only be used once. Please contact us and we can retry the transaction for you. For assistance you can contact us via https://diffractionlimited.com/#contact
