Dangerous Illegal Collectors

I received a call from someone "called" Ray Fischer. Where he proceded to request my bank card information to collect a debt. And if he did not get that information immediately, he would have me served with papers!! Right after this introduction, he started calling me names and insulting me. The night after, he proceded to call third parties related to me and screaming and insulting them if I did not provide a bank information for him.
Federal Agencies pleeease take note on this cases, this is a clear violation of anyone civil rights, privacy rights, and whomever this people are, they are illegally accessing information and illegally contacting third parties to share these information and harass the law abbiding citizen.