In reply to NorthernGrit:
> (In reply to lost1977)
>
> So you want them to invest their time/knowledge in fault finding, tell you the outcome, you say 'no thanks' and then fix them yourself? (Not saying you would but plenty of people would)
>
> Sounds pretty standard to me. In fact it sounds like good service that they didn't charge you a refusal fee.
You maybe did not watch rogue traders where a TV repair shop was ripping people off, and holding their goods hostage. It could just as well be that situation, as the one you describe.