I've been getting several calls each day from 301-882-9950. I have ignored those calls until today.
I just called them back using my home phone with caller ID blocked. Someone answered the phone, and I asked who they were. The person on the phone identified her company as RPM. I asked what that stood for and she said "Receivables Performance Management." I told them to stop calling my cell phone. I am not the person they are looking for. She asked for my cell phone number (which I gave her), and she asked if I were so-and-so. I said no and that I had my cell phone with that number for many years. They said they would remove my cell phone number from their list. Now lets see if they really stop the harassing phone calls.
Have 4 missed calls from this number today! I finally answered the 5th one. No answer at first, then a male voice said something and when I asked him to repeat it he hung up.