I just got a call from them too. Second time this had happened. I've received both calls at 8:30 PST. No idea who it is. It's a Los Angeles based number.
this is the 6th day in a row they have called me. who ever it is... and mostly every time in the evening almost the same time everyday. and they don't answer. or if i don't they call right back. what the heck. and it is annoying