i didn't notice if anyone had posted this but it generally works this way
they send you the cheque which clears in your bank account so you think cool and refund the cash, the cheque is from a foreign bank account and wont be processed by aforementioned bank till weeks later, to be found to have no funds in the account ,however you have withdrawn the cash legally and your bank will demand that you pay the funds back whether you have them in your account or not ,so either you lose the x-grand or worst case ,you don't have the funds and start to incur massive nasty charges from your loyal bank putting you further and further up **** creek ,(this has been around a while and for some reason banks in the UK still don't seem to care whether it was originally a scam or not YOU are responsible).
I always thought that if i could be arsed trying to set up a few dodgy bank accounts then you could make a few bucks phising for these ****s on Ebay ..but i assume that if it could be done it already would be ..