These are the typical reasons why a credit card payment doesn't work:

  1. You are using an open proxy or a network like tor that hides your IP. Please use a direct internet connection.
  2. An invalid credit card number or billing address was entered.
  3. An incorrect or expired expiration date was entered.
  4. A hold has been placed on the account.
  5. A restriction may have been placed on the account. For example, the account may be set up to not be used outside the country in which the card was issued.
  6. Insufficient funds.