Bad experience buying new TV

I bought a new TV last night, asked the sales guy and the till lady if its possible to put the TV on budget to pay off over 12 months, they both said I could so I went ahead with the purchase. There was some problems at the till and somebody came to help the till lady. The lady helping then put the payment through as straight and the full amount went off my account, leaving me with no money for food or rent! They said I should go to the bank today, but the bank then told me to go to Game so they can sort it out... went over to customer services at Game and was told pretty much that nothing can be done, not even a sorry.<br> <br> I am now sitting with no money at all and am going to have a huge problem at the end of the month...