Caller named XXXX XXXX called my employment. When I called him back he immediately raised his voice and started yelling at me and arguing with me. He would not give me any information as to what type of debt he collecting. I told him that he was not allowed to call me at my employment and he continued to argue with me in a very violent harassing manner. He hung up on me and then immediately called me back to " prove a point '' is what he said. 
