Hilarious situation! Moved into a top floor flat a year ago and brought TalkTalk with me. Changed to fiber and it started to work nicely. A few weeks ago I was informed by text, letter and email "sorry you're leaving us". They'd heard we were moving house. Incorrect. Someone had moved into flat below us. TalkTalk didn't have a record of a top floor flat existing so we got cut off. I called up and was advised to change the address online which I did. We still got cut off during my fiancée's finals. I spent 100 mins on live chat being passing from department to department and being told "thank you for your patience" about 1000 times. The end result - "you've been cut off and you need to buy a new package but your address doesn't exist so we advise you contact Royal Mail". I wrote a letter to them last week. There will be another one coming. Oh and they want £192 leaving fee.