Called the number trying to find out what company I owed a balance to and she hung up on me

Threatening call asking me to pay $ 700 or they will sue me. They refer to a 2009 bill from Jackson Hospital

same as Rolando a call alleging me to owe 978.00 from a bill Jackson Memorial Hospital , I have never received a notification from such hospital , the caller said will sue me if I don't pay , when I called back several times they disconnect the call , they identify themselves as litigation when they first answered the phone.

Called my land line at 12:45PM looking for me, but by my maiden name. ID's himself as Marshall, and that he was from Recovery Resolution. Said they were some type of 'Mediation Agency'. Told him that the person he was looking for had not been here for 16 years, and hung up. Here are other reports on this agency
http://mrnumber.com/1-307-264-2350

Multiple calls received on both home phone and cell from this bunch threatening legal action