Robo-calls multiple times each day until 10:30 at night.  Called the number and followed prompts to remove my number, which should not be in their system to begin with, and they continue to call.  Best I can tell it is a collections company in Charlotte called ERC.  

Send them a cease & desist letter, and go from there. If they are a legal legitimate company, then they should have no problems giving you a real street address..  You can find a free form template online. And send it certified mail so they can't say "I didn't get it" and keep a copy for yourself.

http://800notes.com/arts/Jb8EW-eDhQA/harassin ... ou-need-to-know