So far the VSBC has been the most helpful , the ACCC say it is  Consumer Affairs area , not sure if they are taking may issue further but they did take a lot of information, I think the more people complain the more likely any government body will act. VSBC applications are at https://www.vsbc.vic.gov.au/application-forms/   the ACCC https://www.accc.gov.au/site-search/complaint and Consumer Affairs who I believe should be the ones to act is at  https://www.consumer.vic.gov.au in Vic