Seems you made the same mistake I did. I usually buy straight from EVGA. I was looking to buy the 1080 FTW and it was out of stock on the EVGA store when I looked. Checked back a few times and it still had "auto notify" on it. Since Amazon is listed there, I bought it from them, thinking the promotion applied. After receiving and registering it here I found out purchases from Amazon (mine was shipped and sold by them) do not count towards the promotion. I talked on the phone with Amazon and emailed NVIDIA and was denied a code. I emailed EVGA too (the email listed on the Gears 4 redemption page
webmaster@evga.com) hoping they could help and haven't heard anything back yet. I doubt we will get codes man lol. Just take it as a lesson and make sure the promotion applies where you are buying your card from in the future.