which exhort people to "to stear(sic) clear of this company" Robbiecollie, and your thread would normally be deleted for containing that kind of statement, but I think I can clarify things a little, so we'll leave the thread online - please don't repeat the statement.
1. It often isn't necessary to see a computer to diagnose a software problem - if you know what you're doing it is usually fairly easy to tell, so perhaps the Poweroid representative wasn't at all ignorant - just efficient and knowledgeable.
2. Poweroid have thirty days within which to refund your money, and if they have only had the machine back for 9 days they are still well within that period.
For that reason I would advise you to wait a while before considering legal redress, because (based on what you have said) Poweroid have done nothing wrong so far.
I have no idea why the company refuses to talk to you, so I can't comment on that. Poweroid are not known for being uncommunicative, unless someone is aggressive or rude on the phone of course, and I'm sure that doesn't apply in your case. What I can say however, is that we see very few complaints about the company in our forum.