I'm locked out of my level 52 / 125 OVR account due to Game Center sync error

on iOS, I was locked out of my account (Chickengamer16) which was only synced to my game center, and on october 1st, that game center locked me out of that account and gave me a new account which i don't want, ive tried every method to get Chickengamer16 back but it doesnt work, I've provided 2 screenshots below (my team lineup and the stats in division rivals) as proof that it exists, can anyone help get my account back please?