Its been a day so I'm not sure if you've already solved this problem on your own but after you bought the time card, you should had been brought to a page that allowed you to download the "instructions." On this page, there should be a serial number, this number is your game time card code. If you've already exited this page, you can access it again by logging on to your account or track it by entering your e-mail and your password in the "Quick Track" function.