My payment method is perfectly valid, but cloudflare just doesn't want to accept it. This just doesn't work, but there's no clear explanation about why, or a clear path to resolve this issue. Clarity would be very useful here. Is this just an internal technical error that will eventually be fixed? Is this a payment issue? This error message does not provide any clear information about what is going wrong.
The documentation panel linked in this error does not really address this scenario. I raised a support case, but because of this problem I cannot pay, and therefore I cannot view my open support cases because apparently you can only view open support cases if you're paying for services? Really?