This is an experimental page. It may not cover all scenarios, more are being added, but it should help with the common problems. Please try it, it is just a matter of selecting the appropriate option when prompted.
Some things can be fixed at your end, some at ours.
If your problem isn't covered then email the Membership Secretary, (Bob Wightman), the email address is on the contacts page. It can then be added. Please be as accurate as you can in describing the problem, "It doesn't work" is not very helpful and will just delay things. Try and repeat and note down the steps that you did to help us replicate it.