I think these guys are offering "government grants," but they will not quit calling! I am getting about 20 calls per day from this number. When I answer, I ask them to stop calling and all they do is repeat that I am missing a "great opportunity!" Interactions go like this:
"I am not interested, please stop calling!"
"But you are missing a great opportunity!"
"But I am not interested. How can I get my number off this list?"
"You would miss a great opportunity!"
I have stopped answering, and am getting calls about every ten minutes today.