Have you tried calling the ins co & speaking directly to them about the exact reasoning behind the denial? How about climbing their supervisory ladder?
I'm actually just kinda keeping tabs on what is happening. My beloved is actually handling everything at the moment. She's been keeping me in the loop so that I can step in if she gets to the point where she doesn't want to deal with it anymore. I know that she's spoken with a handful of people at the specialty pharmacy and the insurance company, and she's been taking notes of everyone she's spoken to. If it comes down to it, we'll have all of the facts and information to push harder.