It's something $ears dreamed up for when they're really backed up with calls. They will contract with local service companies to run $ears extended warranty service calls. It has not been a good experience in our area. Most of the no name service people out here are crooks anyway so they piss off customers when they don't fix anything and leave. So when a real $ears tech goes out, we have to listen to complaining and whatnot for a half hour before we even crack open the appliance to fix it.
My understanding is that $ears pays $85 per completed call. I'm not sure if they pay premium for parts. All I know is when one of these ASC techs goes out and says he needs to order parts, he never comes back.