I had an issue where my aged auntie was signed up to a big Virgin package (she only needed TV and phones) without her asking - first thing she knew was the home installation kit arrived, something she'd never order without checking with family tech support (me). When I rang them, they were good about fixing it and pretty much admitted that someone at the call centre had done it to get a bonus. Then it happened a second time, so I was back on the phone to them. They let me keep the home installation box the second time and drill make use of that very long Ethernet cable.

So the big companies can pull a fast one too. Be vigilant.