If you have Sky Talk your No longer with BT.
Give them a call as i think there has to be a 12 month laps between being a New Customer and a returning customer.
It may be £120 off an Installation fee.
(I don't work for BT)
I would have thought having the TV Broadband and Phone would work out cheaper with Sky ?
Ring Sky and sy your just not comfortable with the pricing.
You may get 6 months free or reduced on your TV
Food for thought.