Principal is absolutely ridiculous. I'm in financial harship after not receibing my full pay from work and exhausting my long term sick

I was placed on medical leave after suffering from vertigo and later diagnosed with Meniere’s Disease. I was put on medication. During these episodes of vertigo, I was not able to stand or lay down. I was out of work for a month and came back to find out that my claim for benefits was denied because my doctor failed to write “yes” to restrictions. However, my primary care physician is not the main person I was dealing with. Principal neglected to inform me that they needed this information from my ENT who is the person that officially diagnosed me while I was out on leave. I sent 200 pages of my medical information that dates back to early October when this began through December and they are still staying they need to see the doctor say “yes” top restrictions from work. Every single note and test and medication is in my chart! Maybe I’m crazy, but if a person drives to work and cannot stand up or lay down, wouldn’t that be a restriction? I sent everything they needed along with a note asking them to reconsider this claim and I expect for them to approve it. This is absolutely ridiculous and is putting me in financial hardship because I am not receiving my full pay from work after exhausting all of my long term sick.