I didn't get my backer rewards

Back before the game was on steam, I remember having my backer tag. When I switched to steam, I used the free key I was given and that worked fine, but I lost my backer tag. It never really bothered me, but I couldn’t find my name in the credits and I figured I should say something.

I gave 15 dollars for the “Gamer” option and the id is 1280.

The backer rewards are not automated. Did you link your account by the December 2015 deadline?

I guess I did not… I’m assuming there’s no other way to link it now?