@teardrop, you really are in the thick of it and I'm sorry for all these converging troubles.
You might call the practitioner's office to secure a cancellation. I would email and health message the NP.
Your insurance co may well know that appeals take so long that you would opt for a protective drug in the interim. You could though choose an oral medication like alendronate (Fosamax), for a few months and wait to see if the approval is successful, as I suspect it would be with an aggressive appeal. While it is terrible to be left in this position, going off Prolia could prove advantageous, especially with the possimle impending surgery for the bulging disc.

Your scores look really good and may be even better since 2024, so congratulations on that.
Sometimes bulging discs resolve on their own, but there are minimally invasive procedures like microdiscectomies to resolve the the pain.
The drawback with Prolia is that the bone it creates has a difficult time repairing itself. If you were to need a disc replacement or fusion, it isn't the best medication for maintaining hardware. Your insurance isn't trying to do you any favors, but may have inadvertently done so.
You are, no doubt, in grief. That loss makes everything unbearably difficult.
I hope your dad's moving in provides a wonderful opportunity to be closer to him. I had that kind of miracle in my 60's. What I wouldn't give for another day with him.
Bless your struggles with some luck.
https://www.sciencedirect.com/science/article/pii/S1297319X25001162