CDR CashNetUSA CDR Collections phony calls Internet

 I started receiving phone messages from various people. They all sounded as though they were yelling at me, stating they were giving me 48 hrs to respond. I did not call them back as I had no idea who they were and had no late bills. They called my place of employment and left a message on my husband's phone - I don't know how they obtained yhat information! I googled the phone # and saw many similar stories. I have not called them back as I do not wish to encourage them. This definitely seems like some kind of scam to get me to give them $.