Got a robo/pretend human call from this number asking me if I wanted "Medicare options."  I said yes...eventually got connected to a real person.  I pretended I was older than I was, listened to his schpeil and then asked to be put on their do not call list.  He kept asking me why, I kept saying that I didn't need to explain and would contact the FCC.  He then called me a "d***head" for wasting his time and hung up on me.