We're sorry to hear you're experiencing payment issues. Here are the steps to help resolve your problem:

1. Verify that you've selected the correct card type. 
2. Double-check the accuracy of your payment card number.
3. Remove any spaces from your card number.
4. Ensure that the start and expiry dates are correct.
5. Confirm that the security code (the last 3 digits on the back of your card) is accurate.
6. If you're using a Switch, Maestro, or Solo card, make sure you've entered the issue number, if required.
7. If you're still facing difficulties, we recommend checking with your bank to see if they've declined the transaction.

If you have followed all of the steps above and are still having issues, please call 0330 400 1511.