well i sent my xbox 360 to be repaired and they are sending it back after one day and they gave me a fedex tracking number. But when i put it in it says invalid. I even called them back and asked them if they could repeat the number and it was right. So does anyone have any ideas why it is doing this? 10 points to best answer by the way this they gave me the number yesterday so when do you think my 360 will be delivered to me?