If you can prove they are in LA area and can get info such as name and address or phone, I would suggest contacting LAPD and report a fraud in progress (unless they shut it down in which case it would no longer be in progress).
That would be the way to go, criminal charges first, then civil.
I think that will be tough. We need racknation.cr to cough the details of those fckers, that way we will know who we are against here.
Tell them they are currently assisting in committing a financial crime and you’d prefer to get the info without getting the police involved.