Uber account deactivated

My dad got his uber account deactivated saying that he is sharing his account with someone else. My dad had been working for uber 10+ years with 25k+ rides and a rating of 5.0 he’s never once shared his account with anyone. He doesn’t understand English fluently and they asked him to take a selfie so he just used a selfie he had from his other phone and got banned. What can I do to get his account back up ?