That is why you need to take the line rental and broadband package together.
Are you aware of the problems and cost of leaving a Full LLU deal such as that?
The line ceases to qualify as a "BT line" that all other ISPs except Sky Full LLU require. You are faced with a possibly costly exercise getting it back to a phone supplier where it does so qualify, then probable loss of broadband for 1-2 weeks and a possible broadband setup charge.
My broadband basic info/help site - www.robertos.me.uk My domains,website and mail hosting -Tsohost. Internet connection - O2 Standard.