Account banned for 670 hours without no reason

I love fc mobile and play very often this game. My team ovr is 124. Well today morning i was playing and suddenly my game stopped and keep saying that my account banned for 670 hours. i dont know why and happened. So plz fix this and let me have my account back. i think i didn't do anything wrong or any mistake. plz Fix it and let me have my account back so i can play again