I've looked on the main list and in the forums and can't find the alternative for this particular number. It isn't the internet banking number thats on the list its a number that came with my conformation for a new savings account. It says I have to ring this number to set up internet banking and security details 0845 603 4857 and its an online only account so I have to set it up.

You could try ringing the Internet Banking Helpdesk (01226 261 226) and they might be able to activate your account for you. If that fails, try ringing the Switchboard and seeing if they will transfer you.