Please supply a lot more information like what AMD Hardware you purchased that qualifies for a free game. Also when did you purchase the qualified AMD Hardware and from where?
You new PC Hardware and software installed, Make & model plus Windows version installed?
Your question is to vague, at least for me, to offer any suggestions.
Did you go here to redeem your Retailer's coupon or game code that was given to you when you purchased the qualified AMD hardware: https://www.amdrewards.com/
Plus you MUST have the qualified AMD Hardware installed on your PC to get your game code/coupon redeemed.