Bought Game close to when it first came out, now I want the steam key

Here’s the thing I want to say first, my mom bought this game for me and she got rid of the yahoo email she had bought the game with. I want to know if there is some way I can get a steam key now, but I nor does she know what payment method she used. I really want to get this on steam since I use steam to start up…everything that involves gaming on this computer.

Do you have any proof whatsoever that you owned it?

Hey, all you need to do is email and let them know everything that you stated here. Fastspring are our publishers and retain all account information. They may ask you some questions to attempt to verify your identity. Please try and let them know as much information as possible.

Thanks for the help, emailing them today, forgot to do that when I first made this post and you commented.