UC medical assessment

I received my decision over the phone, I was deemed fit for work.
The oddest part of the call was that I was asked what medication I was on and how to spell them.

They were put on my medical application, so I found this bizarre since I've been found fit for work.
I do work three days a week but it's becoming harder because it is physically demanding and my many conditions is really getting in the way.
My work coach encouraged me to fill in a medical because she had seen my struggles first hand.

I requested the full report from their medical assessor.
To say I am shocked by the level of untruths is an understatement.

It starts on page one, the time in which he said the assessment started was wrong.
I can prove I was messaging my friend back and forth.

He said I went through the physical exam perfectly well and was able to get on and off the examination bed.
None of this happened, he didn't go through a single physical and yet he says I can do everything he listed!

I have a very rare genetic condition, he said "I've never heard of it." Yet he states I am medicated for it.

Surely this assessors have a duty of care to at least have some knowledge of people's conditions?

I have requested reconsideration but my question is, how can I tackle so many downright lies?
Unfortunately, I had to go alone became my mum was ill. I feel completely taken advantage of.

I would be so grateful for any advice.

Thank you.