Folks, its a MoneyScam. See MoneyScam.info
You can't get them to stop and they don't honor any of our laws because they are out of the country.
And leaving a message doesn't work either because it's always a Robo Call.
I have a easy solution. I just forward these numbers to a number that isn't working and they just hear a busy signal. It's kinda fun to see some of them call back 10 or so times trying to get past that busy signal. Man, are they stupid.