Person called my cell phone first and hung up, he then contacted my home number. I said to this person that you have contacted me without leaving a message or who you are. I told him that I will not give him any of my personal information until he told me what he was calling for. He then started threatening me and telling me to shut up and that he did not have to give me any information. I asked again and again he refused. I told him not to call my house anymore and harass me by cell or home. I also told him that I would report them XXXX. I asked for a supervisor and he once again refused. It then became a shouting match because he called me XXXX. I let him know that I do not talk to debt collectors that I may be reached by mail only. He still refused and said they did n't have to send anything