I bought World of Warcraft online a few weeks ago, but I've not had time to play it so it's still unopened. Don't really want to pay the fee now either, so is there any chance I could take it to a high street shop and get my money back? Was thinking of trying Game/Dixons but I'm not sure they'll believe my terrible, terrible lies

Anyone done this before? I'd rather not Ebay it cos people aren't paying much for it on there...