I've been receiving two calls a day from these people, I always "reject" the call and they never leave a message. I reported each call to the do not call registry. It can't hurt. The more reports they get, the more likely they'll do something about it...
Folks, please DO NOT press 1 or any other number to supposedly be removed from their calling list. When you do that all you are doing is letting the robo-caller know that they have reached a live person. You won't be removed from any list. I'm sorry- I wish these obnoxious calls were as easy to stop as pressing a number. It just doesn't work that way.