it does sound like that yes - the letter talks about unauthorised access attempts to another computer. I did port scan my servers in london a few times, but that was about a year ago - I dont think even NTL are that slow, and if they ban my scanning of my own servers they can go jump!
Well we'll see if they call back tomorrow - somehow I doubt they shall! I'm moving out shortly anyway so will be closing my account, so no great loss there
Rgds,
Dan