After speaking to the "Technical Support" people I now know that I have breached the Acceptable Use policy, the guy said a note was left attached to my account.
Apparently, I now have to wait for whatever deparment it is to contact me, because there is no phone number for me to get in contact with them. I got an email address,
abuse@ntlworld.com, but I don't hold much hope of a reply.
Doh.