warning spoilers. do not read if you want to enjoy the surprises of the game which frankly are one dimensional. This is your last chance to avoid spoilers. They didn't know your email, they knew the user account your computer log-in is listed as. It's just a simple cookie to your computer's internal id information. If you go into your main drive > users, you'll probably find a folder named "Ammoe" which is what your computer calls you, probably because you set it to that way back when you got the computer running from factory settings last. In my case the game asked me "Is your name Owner?"