If your credit card was declined, it is usually due to a mistake made on the billing information portion of checkout. Sometimes the input information does not match up to the credit card details. Re-check to confirm that all of your information is correct including billing address, credit card number, expiration date and CCV/security code. If you are still having issues, please contact customer service at (858) 430-0476 or email@example.com.
Alternatively, orders being placed from outside the United States with US based bank cards must check out using the International Checkout option, otherwise the transaction attempt will result in a "gateway error" and no order will be placed.