A lady identifying herself as a "Sara Stone" from Rapid Recovery called me several times, demanding payment on a pay day loan from the company "Cash Call". She stated that if I did not pay them right away, they were going to forward my information on to the county of Anchorage, AK (we do not have counties up here BTW). She refused to provide me with any information from the company, and would not provide me with any sort of proof of payment and receipt. I eventually hung up on her, because she was rude and I knew I had never taken out a pay day loan w/ the above company. She then called my husband, and her and her manager threatened him and said that I was lying to him. Interestingly enough, the "case number" they kept referencing matched the routing number to my bank, and when my husband pointed this out she stated that "he didn't know what he was talking about". I ended up calling Cash Call and they stated that I had never had an account with them, and they had no account with my SSN.
If you KNOW you owe no money, or believe the call was from a fake debt collector, please take the time to read this:
http://www.consumer.ftc.gov/articles/0258-fake-debt-collectors
I have reported her/them to the CFPB and the attorney general in my state. I'm not sure what good it will do as I know this is a common scam, but at least there will be a reporting.