The most common issues that cause checkout to fail are the following:
- Does your billing address match with the address on file at your bank? Make sure the billing address you enter at checkout is exactly what the card has on file.
- Typos are a common cause of failed checkouts, make sure everything is spelled correctly and your billing zip is correct.
- Double check to make sure the error you're getting isn't in regards to your card. A failed payment error like bank declined or insufficient funds should be brought up with your bank.
If you've tried the steps above and had no luck, we recommend checking out with PayPal. You don't need an account and can checkout as a guest from PayPal.com