Changing schools when things are not working out is an option some parents choose to explore. If you reach that point you can contact the appropriate office in the public, Catholic or Independent school systems:
Regional Office Education Department:
Head Office Catholic Education:
Association of Independent Schools of Western Australia (AISWA)
They can talk to you about opportunities at other schools that may have a more inclusive approach, and space available to enrol students from outside their catchment area.
Remember to think about all the different academic, sporting, life learning and social-emotional factors when considering changing schools.