Cant install GTA 4

XperiaAir

Honorable
Jul 30, 2012
12
0
10,510
I bought the game online and downloaded the game, but during the install process i was asked to use a serial code but i never recieved one and i checked the email that i got for the confirmation that i bought it. sorry if it is badly worded.
 

XperiaAir

Honorable
Jul 30, 2012
12
0
10,510

i bought it yesterday. is the email confirmation the one that says "thank you for shopping with gamestop pc downloads" ???