First guy was a real a**hat!!
I told the second guy I wanted the deal that I had before, 6/mo for $25, and void all the overdue charges! No problem! I always mention if you don't want me to listen to the radio past the due date, then shut it off on that date. They typically leave it on for a month past the due date then try to hit you with huge charges. I'm not happy with their game.
So if you don't get what you want, ask to speak to a supervisor or tell them to shut your radios off and hang up. Call them back, they will always give you this deal. I have been doing this for 5 years. A real hassle for sure, but I will not pay anything more. Good luck!
BTW- They get real defensive if you mention this website.