I had the waiting for someone to arrive one a couple years back. It was sky and they said they would come between 8 and 2, I woke up early (it was my one day off Uni that week, I was actually in 4 days a week unlike some courses!) Sat there waiting for this guy to arrive to sort the internet. Had no internet and the TV wasn't connected to freeview so I was just sitting reading a paper and doing the games for hours. He comes at 1:30, goes "Oh I can't do this mate, you'll need to phone them back and tell them, I'll put it in me notes".
As if that wasn't bad enough, the next guy came 3 weeks later (the earliest they could do) says the exact same. I rang them up and told them to shove it and to close my account and refund me the last months money they had taken for fuck all.