Payment failures can occur for various reasons, including but not limited to:
1) Bank's payment security protection;

2) Network error;

3) Cookie issues;

4) Insufficient funds;

5) Expired card;

6) Incomplete or incorrect card number;

Here are some suggestions that might help you successfully complete your payment:

1) Contact your bank – Inform them that the transaction is authorized by you and request payment approval;

2) Retry after 24 hours – If you have attempted payment three times with the same card, please wait 24 hours before trying again or use a different card;

3) Refresh & clear cookies – Reload the page or clear your browser’s cookies before attempting payment again;

4) Check card details & balance – Ensure your card is active, has sufficient funds, and that the card number is entered correctly;

5) Use PayPal as an alternative – If credit card payment is unsuccessful, you can also complete the payment via PayPal;