I really don't understand the problem. If you offer me the latest and greatest pc for £1, there's nothing wrong with me taking you up on the offer even if I think there's a catch. And then when it turns out that the box was empty, I'm entitled to a refund.
One case where this might not be the case is uf the PC arrives but after that police will come knicking on your door saying the PC was stolen. Then you loose the PC and noone will refund you because at such low price you should have known it's a possibility and this risk was on you.
