Speak to consumer affairs, they have a section that deal with real estate and renting industry. A few years back I was renting in Joondalup with a very unprofessional estate agency. My problems weren't as bad as yours, but to cut a long story short they refused to give me my $800 deposit as they said the toaster wasn't working. I had never used their toaster as it was in a disgusting state when I moved in, but anyway I phoned up Consumer Affairs and they were great. They'd heard of my estate agent as well. Basically they told me to take them to a small claims court, they explained the process etc and it was pretty straight forward and cost < $30. I actually phoned up the Estate Agency and told then I'd got the form and gave them one last chance & funnily enough they reimbursed me 24 hours later. They were relying on having ignorant, compliant tenants who don't know their rights. I'd be on the phone to Consumer Affairs and/or LegalAid.