Complaint Review: Stoneleigh Recovery Associates

This company has never identified itself in the messages they have left on my phone. Their one note says I owe over $3,000 to them. If they bought the debt, they have not said who from. But what really frosts my cake is that they have called two of my friends and told them to have me call them. It's urgent! One was an elderly lady from my church and she spent a sleepless night worrying, thinking it was about a relative of mine who might be ill. Then they called another member of my church. How they got their names and numbers I do not know. I will not respond to this kind of harrassing phone calls because I'm sure anything I say will get me in further trouble. I cannot pay anything even approaching $3,000, but if I were to send a small payment, would this get me in further trouble with this disreputable company?
If they purchased a debt with pennies on the dollar, how far can they go to collect this outrageous amount? Help!

Anonymous
Lansing, Michigan
U.S.A.