I was left waiting in store at Carphone Warehouse within Currys PC World High Street, Birmingham, B4 7TE because the store had a computer communication issue. All i was after was 3 usb charge and sync cables. I paid twice and the card machine printed a payment receipt but the store would not give me the cables because the card machine has not communicated the payment to their computer. an hour later i finally was given the product after the sales assistants did some back office system credit. No managers were around. I called the call center at the time and just got passed around and was not even able to make a complaint. I emailed Carphone warehouse, messaged on twitter and Facebook and so far noone has dealt with my complaint about how I was treated in store. I have written a letter of complaint and adding my experience to review forums to help other people steer clear.