You are currently without internet access/phone/TV at home because you disconnected your partners services as you thought the contract rolled over and didn't understand the switching process and now you're giving him advice to book a disconnection and re-install? You have to see the irony in this situation.
Which is basically the same advice as this, no??
If you do want to go with BT then check carefully about how long and when broadband could be reactivated on the line and make sure you understand it'll be with a new phone number etc. Personally not switching just because of BT Sport seems crazy, I understand they start charging for it when you're out of contract unless you take a new one.