Not to sure about being able to claim our capital loss just yet, it is my understanding that even the company has been delisted, our holdings still exist and we need an announcement from the administrator that states it is unlikely the holdings will ever be worth anything.
https://www.ato.gov.au/General/Capital-gains-tax/Shares,-units-and-similar-investments/Investments-in-a-company-in-liquidation-or-administration/