We left AOL broadband to join Talk Talk and the change over went according to plan until we would try and fail to get on the Internet. We all would comment on it being crap and then went through instructions with technical team to resolve the issue. Still we struggled, so the call to terminate for free within thirty days was made.  
Customer services refused to let us cancel as requested, asking us to speak to other people in tech help etc. My wife was being very insistent on cancelling and was told about the fees we would incur if we did cancel. 
Eventually the customer service man HUNG UP!
 We rang back to complain and someone else hung up on us when we said we were angry.
If you want to talk talk that's fine but complain complain is not it would seem.