Please ensure the following:
That there are sufficient funds in your account.
That the card number, name, and CVC details match those on your card.
That your bank has not placed a limit on the number of purchases or the amount of money you can spend within a 24-hour period.
Also, please note whether your card has been unlocked for international purchases. Even if you are able to checkout in our local currency, your bank may still consider the payment as an international transaction.