Who called from 7752676011

Called from an unknown number.  Left a message with this number asking for me and said this was a final courtesy call.  Guy's name was Jim Austin.  Did not leave me any details besides a file number, phone number, and name.

He's called my phone twice. Don't know who he is but I don't like his attitude. Tell me what it's about and ill return your phone call:

Called and left message with a "file" number, but no explanation of what and who it's all about.

It is a collection agency in Carson city.
They don't leave detailed messages due to fraud and if they have the wrong number.
I just returned the call and it is all legit.

Got a call for my mother guy was very rude no details of anything not even the company name nothing