Nationstar keeps calling the business that I work at, XXXX XXXX XXXX XXXX, multiple times a day trying to collect a debt for someone that no longer works here. It is an automated dialer with no option to talk to a person. There is an option to say that is is the incorrect number, but they keep calling. 
I called the number they provide for you to call back for more information, and by pushing a lot of wrong buttons, I was eventually transferred to a human. When I told the gentleman that I wanted them to stop calling, he said there was nothing he could to remove our number until the intended recipient gave them permission to change his account.