My guess is that this is the same group that calls to lower my interest rates, wants to help me save on diabetes supplies (I don't have diabetes), or some other phishing scam. It just boils down to the "flavor of the week." If the gov't shuts them down, they just pop up with another phone number that is, most likely spoofed. Cockroaches.
I wish there was an answer to this. These folks spend day after day trying to bilk someone out of their money. Imagine if they spent that time on a real job!!