Deathlord134579

I bought the trinity edition of sins about 2 days ago and have been playing it just fine, except for the fact that it splits the game into three diffrent games. Now however I have decided I wish to update the game however, when I clicked the update button it took me to the impulse create account stuff, whihc then I did. When it asked for my cd key I enterered the one on the back of the booklet that came with my game. Now when I click update it takes me to this gamestop app place where if I go