A similar thing has happened to me as well, the bill bears almost no resemblance to what it should be with a 1 mb service showing (I was on 3 and am now on 10) about 4 different lots of STB charges both crediting and debiting and is basically a total mess, but for once its in my favour, and I've certainly had enough of ringing NTL this month and getting nowhere fast, so they can wait for me this time
