Each state or territory has its own organisations that you can make a complaint to.
They are listed below.
Australian Capital Territory – ACT Human Rights Commission
Queensland – Queensland Human Rights Commission
New South Wales – Anti-Discrimination Board of NSW
Northern Territory – Northern Territory Anti-Discrimination Commission
South Australia – Equal Opportunity Commission South Australia
Tasmania – Equal Opportunity Tasmania
Victoria – Victorian Equal Opportunity and Human Rights Commission
Western Australia – WA Equal Opportunity Commission