John Green review: Scammer

My family has been receiving these calls from "John Green" and his supervisor's name was "Kevin Palmer". The number I received a call on first was listed as "Jamaica Call" and [protected], then we received many calls from "private name, private number" from the same person, asking my elderly mother "Do you know who this is?", shortly followed by her telling him that she told him not to call anymore, and then I took the phone and told him the FCC would be receiving a complaint and that he would be reported to his local authorities. When I said this, I received the reply of "Shut the F*&$& up" screamed in my ear multiple times, these people have no life.
I'm working on a routine just to piss them off for next time. Bring it on, Mr. Green. Anyone thought about playing a recording of the "the number you have dialed is no longer in service" message using a tape or digital recorder right after picking up the call, every time they call.