my son has two gamertags. He created a us one when he got his xbox by mistake. He then created a uk one so that he could use uk points and get uk content. The US gamertag has gold live for a year. But all his points are on the uk tag which has now run out. I got a 48hour code and put it in just so he could spend his points. It accepts the code but won't let him buy anything on marketplace. Do 48 hour codes not allow access to marketplace?