The caller asked to speak to the office manager. She wanted to know if our office was having any problems with the new ICD-10 coding. She didn't wait for an answer but went on to state the seminars and subscription service they offer offices. I asked her if I had called her. She said no. I said then if I need you I will call you but don't call me again. She still kept talking. I hung up.

This number has called me probably a dozen times in the past week.  I have not picked up since I didn't recognize the number.

The hang up when I answer.