Any way to get PSE12 back after Windows reset?

Hello. My computer was recently corrupted and I needed to do a full restart of the OS. Unfortunately, that means my activated copy of Photoshop Elements 12 was removed. I've had it for a few years and cannot find my activation code anywhere. Is there any hope for getting it back? Thanks a bunch. I'm an indie developer and I really rely on it to continue working on my game.

I already tried contacting Adobe but they never responded....