Received a call asking for me, the lady said she was from NR Associates and that they received "personal documents" for me this morning.  She asked me to confirm the last four digits of my social security number (which she did have).  Instead I asked her to repeat who she worked for, and told her I have never heard of them.  She insisted that I confirm the last four of my social security number; I responded that I didn't want to, that I have not heard of them and for them to not call me again.

After the call I searched NR Associates and read reports that I was correct in thinking it was a scam collection thing.