I personally would not pay £50 for another modem, I think that's a total rip-off! and most people on here know that. What happens when they upgrade the 10mb to whatever it will be next? another £50 fee because the new ntl:250's wont hack it?
Phone retentions through customer services and tell them calmly (hard I know!) that you are off to greener pastures if this situation can not be sorted out in some way or another. Then leave it to the nice people there to offer you a deal. I almost guarentee that you'll walk away from the phone better off. All the people I know, including me! Who have done this are happy as a pig in pig pooh! Because we are now on a much better deal.
I dont know what's wrong with us British folk? We just seem to lie down and take it up the you know what. It's not fair is it? Then take control of the situation/your life, and call retentions! At the end of the day, retentions are there to retain as many "I'm off to greener pasture" customers as possible.
Now for the small print in layman's terms... Don't blame me for anything negetive that might accure through you being hyped-up by this post. you alone are responsible for your actions! 