but we need concrete action
I agree, but the problem is that we do not know who is the owner of the exchange and we do not have data of the location of the owner of the exchange and we do not know the address of the exchange. so this limits us, but the police have their recourse and can figure this out
tell us where to start
If you are robbed, then you must hire a lawyer and report your case to the police.
and how to succeed
being determined, not giving up hiring a lawyer and reporting the case to the police, imagine if most of the people who were robbed had hired a lawyer and reported the case to the police, probably today we would be talking about another subject, maybe it would be something like "the owner of Yobit was sanctioned by the court)
there's a lot of scam accusations about Yobit but until now they are still operating and they will scam many people in the future again so it need to be stopped.
there are people who have lost a lot of bitcoins and have not hired a lawyer and did not report the case to the police, and that only makes those exchange guys continue to ignore the rights of their clients because they know their clients will not report the case to the police and courts