Who called from 8014848585

Is this a legitimate international probate research company?

My elderly mother has received three calls from this number claiming to have inheritance money from a cousin and knowing the names of family members.

They called repeatedly to my cell phone.  Unauthorized and they ran down my pay-as-you-go balance.

I am an older person, living alone. Recently I have had several calls from this number. The caller left voice mails claiming that someone with my same last name has died and left an estate,  and he, the caller,  is looking for heirs. For several good reasons, this  did not ring true to me so I have not returned his calls .

Received phone calls to. Who are these people. They seem to know a lot of personal info about my family