Hi andyjstew, thanks for your post. Sorry for the problems you've had registering an online account.
Have you been able to try another device/browser to see if that helps?
If you have and that made no difference then we'll need to investigate further & possibly raise this with IT.
In the interest of getting this resolved asap I'll send a PM shortly to confirm a few details - if a different browser/device doesn't help please get back to me when you can and we'll take it from there.