Code says i still have it but i dont have it

i have tried to redeem my code for the BMW M4 livery edition, xbox says its still avaible for redeem and i have done all the steps they have told me to, still it doesnt show up in ready to install or in the installed content, i also have checked ingame for it but still no existance of it, i have redeemed all the other pre order cars with liverys and the M4 is the only one that i miss, i hope that i may get help becasue the xbox support have told me to go here for help because they cant. GG WP just wanted my M4 forza livery D:

I have this issue as well, along with the Audi