Robert Wilson called my job and told me he was going to serve me unless I called the above number.  He then asked me where and what time I wanted to be "served" I told him at home.  I asked what is it about he said he did not know and that the letter was in a sealed envelope.  I also told him he can not call me at work and he said he will until and unless I call that number to stop him from serving me.  I said send me a letter about the debt and again said do NOT call me at work.  He called a couple days later at my job (he NEVER showed up to serve me) and told the person who answered that I was under criminal investigation and then called my parents home and told them I committed fraud.  I put in a complaint with the FTC.