For Queensland based matters the correct first contact is the https://www.qld.gov.au/law/housing-and-neighbours/body-corporate whom are best to call first, and they will call you back.
If things proceed further or are better suited it’s https://www.qcat.qld.gov.au/matter-types/other-civil-disputes/body-corporate-and-community-management-scheme-disputes
And like a man with just one platform shoe, I stand corrected: it is 25% of owners required to request an EGM.