Amnesia serial code issue

[WolverinesLPs]

Over a year ago I purchased and downloaded Amnesia The Dark Descent from the GameStop PC app, which they stopped using and I had to delete it a few months ago.
I tried playing Amnesia today but I need a serial code and due to GS removing their app I cannot see my downloads, and I cannot find the game on their website so I have no way of finding out what the code was for when I had purchased the game. Any help please?!

[jens]

Please contact GS to get help with en issues relating to their services, we can't check what serial number you got with your purchase.