HELP ME

Friends, today someone stole my brother's account saying they would get uc in pubg. He didn't tell me anything, my brother, the kid was devastated. He decided to quit the game he worked hard for years and invested thousands of dollars in, I have this person's twitter and phone number, is there anyone who can volunteer to help me, my brother is not crying but I can understand how upset he is from his behavior, I have never begged anyone except God in my life, after begging God again, I am begging you too, please help me get my brother's account back and sue this person, I am begging you