Easy to bail...
It's been pretty easy to bail out of contracts recently, especially ones with T-Mob/Orange. They've been tidying up their cells, and reducing overlap.
This has resulted in some areas losing coverage completely. Which is exactly what happened to my brother. Suddenly no signal at home.
After he heard of a neighbour getting released he thought he'd have a go. It took a couple of phone calls (first 2 agents wouldn't release him mid-contract), the third agent was a bit more sensible as they were failing to provide the service he'd signed up for, and had been using happily for several months, and let him go... 12 months into a 24 month contract. He kept the phone. No fee (their breach after all).