Nope, you don't find a new hobby, you get a recorder to tape the phone calls (yes, it's legal and no you don't have to tell the other party they are being recorded) and you call a lawyer. The individual and the company they Rep for will get their weenies slapped. Threats are serious business. It doesn't really surprise me to hear that it's a BVM rep, I've had less than stellar dealings with a few of them, but it's sad to hear a JR rep.... I'd be contacting Horizon about that, my guess is that JR wouldn't treat it as lightly as BVM does.
Having said that, there are a few BVM reps who have been helpful and didn't seem to aquire the arrogance that the purple cool aid seems to inflict on many of them....