WHen I answered the phone, the caller asked me to confirm my address and social security number without telling me who they were or with what company. When I told them I was not willing to confirm my personal information with an unknown source they said that they would no longer be able to continue with the call. I called back and asked them what company they were, they asked me to give them my personal information including my Social Seurity number. I told them that I would not give them my personal information until they told me who they were and why they were calling. They refused to tell me who they were so I said, "YOu expect me to give you my personal infor, ut you refuse to give me yours?" That's when they said they were representatives from J C Christensen & Associates Inc. They would not tell me the nature of the call, only that they dealt with "sensitive information", but when I looked them up online it shows that they are a debt collection agency.