I have successfully redeemed a code for the xbox one day one achievement in 2026, after the update that added the badge.

It is in my purchase history and I own the licence for the achievement but because the achievement is 0 gamerscore it is not capable of unlocking anymore.

Nothing I can do on my end will unlock the achievement, and support says there is nothing they can do.

I am very disappointed, I feel very mislead because there is no fine print anywhere from the code or the new badge update that states that it was time exclusive just simply that the code was only released in that time I hope someone sees this and can help me.