DO NOT call that number back. Those are scam calls. If you call back, they will try to get you to send money saying if you don't pay they will file police charges against you
If they call again and you answer, all you say is that they are to "Cease and Desist all calls to your number and all communication may only take place in writing"
That sounds like a scam
the intent of fraud" ?
Could be that someone has stolen your identity, you might keep a closer eye on your finantial statements for irregularities.
You can ignore that unless or until you get something in writing.
If you still have the message, you should play it for the cops.