I would stay as far away from BT as you possibly can, rather go for a service with another company even though it might not be as much cap or bandwidth as BT.
If you go with BT they will mess you around and then they will try and rip you off. If BT was not a fascist organisation they would have gone out of business.
They have just added on £9 payment processing charge, they want to charge me £9 extra for processing a payment.
So to summarize, if you order it, you will most likely be without internet for a certain amount of time while they **** you around. Then once it is installed you will have at least one service disruption a month and you will experience bad latency at random times. You will then receive bills that do not correspond to the agreement. Calling them up will trick you in to thinking that they actually heard your problems and will fix it, only for you to call them up again and have to start over. After spending an hour on the phone with BT you feel like when they hang up they start laughing and throw your details in the bin.
Stay away from BT unless you like wasting your time and getting ripped off.
I wish i had not signed up to BT. I should have known. I will never make that mistake again.