Please make sure the billing address entered on their site matches exactly to the billing address on your credit card statement. If the addresses differ, your order may not be successfully processed. If your order still runs into an error during checkout, please consider using a PayPal account to complete your transaction. Also, please note that for each denied attempt to purchase on their site, you may see a corresponding pending transaction on your online bank statement. These pending transactions, however, do not affect your account balance and will be dropped within a few business days. If you are unsure if your payment went through, please contact them for billing assistance.