I have now tried three times in the past month to renew my Cycling UK membership. As I am not a UK resident and I don't have a UK bank account, the only way I can do so is by payment card. However, when I attempt to do so, I get an error message from TNS Payments, the card processing company:
HTTP Status - 400
E5000: Cannot form a matching secure hash based on the merchant's request using either of the two merchant's secrets
This is before I enter any payment information, so it's clearly a problem with Cycling UK and/or TNS Payments.
I find it hard to believe that I'm the only person in this situation, and I'm rather annoyed that no one has replied to my email about this. Does anyone have any advice for how to resolve it?