If you receive an "AVS error" code when checking out/unable to check out, then this normally means there is an issue with your credit card. One example is your billing address does not match the billing address attached to your credit card/bank account. Please contact your bank for your billing address. Another cause for a checkout error is using an American Express gift card. Unfortunately, we are not able to accept American Express gift cards at this time. Our system does not allow credit card gift cards (i.e. AmEx or Visa gift cards) to be combined with a debit/credit card purchase.