It was as I was moving house so I called to cancel completely. I then mention sky was doing a better deal so when I move into the new house I will join them, the telesales guy was like "hold on a minute let me see what I can do!"
Next think I know I've rejoined and got everything I wanted.
I think I'll be giving them a call - that's a great deal. We may be moving house soon, so could wait to see if that'll work better, otherwise I'm happy to drop BB to 30MB - saving around £360 per year!