Robot call. No one there

3rd party car warranty offer -- not sure where they get their information from, but I am sure I never gave permission for it to be released.  This number should be blocked.

This number has called me 8 times in the last week.  I declined to answer, they left no message.  I finally picked up today and it was a robot call about my "vehicle warranty."  I tried hitting 0 for an operator and it disconnected me.  This number has been added to my BLOCK list.