LOST MY FOUNDERS CAPE AND BEEN WAITING MOUNTHS TO GET IT BACK

i have 4 pictures showing prof that i had it before the update and i have made other post about this bug and have never gotten any help from mojang this is frustrating i just want my stuff back my this is on Ps4 and and mobile to platforms my Psn user IlNoHack2winlI and Microsoft account Acj7000000