Wasn't sure where to post this. I'm having problems when trying to redeem Game Add-On codes for Halo Infinite after purchasing Halo Infinite merch. I've got to halowaypoint.com/redeem and entered the 4X4 code but then get the message, "This code has already been redeemed and is no longer valid." This has happend about 3 times now. Are people just guessing these? Is there any way to submit photos of the card as proof?
Halo Infinite Code Redemptions