Company claims that they are collecting for a company that I have never heard of but they have all my details, called ex husband that I have not spoken to in years with threats and false accusations demanding that he tracks me down to call them. I think that they are the same company in the past pretending to be someone else. When I call the number they refuse to send anything in writing, They become aggressive when I refuse to give them money over the phone, threating to have me arrested and my social security and credit ruined.