called, no message, blocked

Called my cell, asking if I was Marianne (which I am not).  Did not give reason for call.

They've called six times in the past sixteen days, always in the evening when I'm working, and they never leave a message. They are now blocked for not using the common courtesy of leaving a message.

Called several times and never leave message.  Most recent was yesterday..Apr 11, 2017.  Blocking today.

They keep calling. Although my phone company alerts me that it is possibly/probably spam I answered because I'm sick of them calling. Disingenuous as hell. Said it wasn't a sales call, they are simply providing "free estimates" on windows and doors and that they are offering a discount on said windows and doors. Refused to take me off their call list saying that it wasn't a sales call, just a free opportunity. Hah! Also said that she had gotten my name and number from Home Advisor (who denies that they have my name/number). Not sure who's right about that but I'll never in my life use Home Advisor.