I shared an apartment with a guy who works in FB. He stopped paying rent for two months because of some argument between us, and eventually moved out without letting me know. I sued him in court to get back the two months rent and lease termination fee, but the case was rejected by court, without any reason specified.
What else can I do to get my money back? How can I report his unethical behavior to FB? Any advice is appreciated!
Without that, there is nothing you can do, legally. You have no proof and no one will believe you since they don't know you. Take this as a lesson and walk away.