Exchange is not obliged to inform anyone about the actions. I think they have informed to the relevant authorities for a long time. The question is why the OP does not want to cooperate. What is the problem? Every time he says "give me back my coins." I think if he immediately announced the desire to return coins, the exchange returned them. But this idiot for some reason sent someone else's ID... two times. Now the return is impossible without the participation of a third party = investigative authorities.