Total scam.
a) When I told him that he didnt have the right to call me, he said I had given him my number. I of course had not and said so. He then called me a "liar". Told him I need to talk to him supervisor. He came back in a different voice as the 'supervisor'. I got mad and said I need to talk to a real manager. At that point he hung up.
Received a call from 408-157-8854 I did not answer, as do not know the prefix. Said "Name not found" on my telephone screen. We are on the do not call list.