Can I assume your talking about broadband?
If so, give the broadband team a call. Number found on below link
Give us a call on 08007591213 to speak directly to a NOW TV advisor
Not sure but I don't think @TomR is around anymore, still if you want to contact NowTV help then do the following:
Just click the arrow in a blue circle and the following will appear:
You will then be able to contact Now TV's online help, explain your problem to them and they'll be able to sort it out.