The only way to get this cra- to stop is to direct it where it will hurt. Once I was through to a live person, she asked for a phone number in case we were disconnected. Thus she probably had no idea what number she was connected to. So - time to act very interested, give a phone number for:
a. Local Congressman's office
b. Local District Attorney's office
c. State District Attorney
d. Local police non-emergency number
You've got the idea. Get a number that goes to a real person with authority. Then, midsentence - cut yourself off. Let them call back to the number they have noted. Objective - make this unprofitable for the scammers, get authorities engaged as they won't put up with this for long.