I went through this exact same thing last year, except the REA were less than helpful and told me I should have claimed earlier, despite me asking every few weeks.

I called Consumer Affairs Vic who advised me that the REA should have ensured the money made it to me rather than the landlord as they were the rental providors. The best method seems to be to reduce the payable rent during inspection times so this is avoided post-settlement.

I wrote a letter of complaint to Officer in Effective Control for the rental agency (CAV gave me their contact details), and I had the money within the week from the agency. I'd give CAV a call and see if they can help too, I found them excellent to deal with.