Thank you Warhawk!
Though now I am having a very strange issue. I open the app go to multiplayer as usual, and for a moment I see a 'ghost' of the account I just signed out of. Then it quickly flashes up with my old accounts stats, the one I just signed into. Seems fine... Then I go into pick a server, and pick a plane, and it shows my current accounts name, but it shows the accounts credit balance (4,700) that I just signed out of. Then if I purchase something (tank upgrade) it will show my current balance (over 100k). Uhh.. Weird. Then I go into a game and it shows me as being on the account that I just signed out of!?! I'll try to add screenshots.
Does anyone know why the account I just signed out of seems to be 'ghosting'? For lack of a better word.