Caller ID said R&M Trading Co but I have no knowledge of them and there's no reason for that call to my "Do Not Call" registered phone except ignoring the law. Endless scams.

Some  one just says hello .hello on VM

R & M Trading Co, who the F knows anymore.

R & M Trading Co.?! How deceptive can they get? Robo-caller on a tie-line offering a phony home remodeling scam, among other scams du jour. They change numbers (programmed into their robo-caller), names and frauds offered at least weekly. They also ask for a credit card up front for something that will never be fulfilled. When will this seemingly endless telephone terrorism and criminal activity stop?

Keeps calling me and then hanging up. I call back and it seems to be a fax machine based on the sounds I hear when it picks up the call