Hi, thanks for reaching out! Sorry about the frustration encountered.
Unfortunately, it's not possible to change this once the limit is reached. You can only change your designated offline device three times per year.
https://support.xbox.com/help/games-apps/game-s...
I would suggest trying out the other fixes skipping #4 and reaching out in the game's forum for additional help.
Please let me know if I can help you further!