Who called from 3152376735

Repeated calls to our office asking for the owner by first name.  Will not leave a message.  Unable to call back the number on caller ID.

NY area code, no one there when picked up. Return calls get error message "your call did not go through" so they are masking the real number.

Calls every few days on cell phone, no messages left.  I called it back.  Got an automated system saying if i want to be on do not call list, hit 1, or to talk to an agent, press 2.

I pressed 2 to see who it was....it was Nationstar Mortgage.  I do have a mortgage with them.  I am sure they are trying to sell a refinance.