Call the girl's parents and explain the situation and ask to speak with them personally in a local diner to figure out a solution to the problem. If that fails to get a response, then get a lawyer and sue them. You need to spend the money to find a lawyer to, at a minimum, make their lives miserable and make them spend money until they correct their daughter's conduct. You absolutely need to do this because your daughter's psychological life is in serious jeopardy of irreparable harm. TAKE ACTION!! Sell your car if you have to; come up with the money.
