People with disability often do not have much faith in the fairness of the system.
The good news is that there are options, one being Disability Justice Australia (DJA) http://www.justadvocacy.com/
Not only does DJA have great staff with a wealth of experience but they also have a Memorandum of Association with social justice solicitors, Maurice Blackburn.
Alternatively, you can seek help here: https://www.afdo.org.au/
People with disability can relate to this video. It's smart and funny.
Lots of issues here from car parking to accessible bathrooms to discourse with strangers. Even funding can be an issue.
I'm sure all people with disability have experienced some or all of these issues.