did your ultima game pass run out before you redeem it ? It should be in the game pass app -> player perks -.scroll down to your codes the code is suppose to be 25 letter/number long the code is in the website (the X) betwn the Qr code and the perk picture
scan Qr code to redeem or enter code at redeem.microsoft.com. view the visophone receive campaing to claim ingame
at least it how it look on my xbox
It might be shenanigans , people were having issues with the 1st .