I've written to the liquidator. I'm having trouble working out if the process is at the point that the shares no longer exist, given they went from the ASX to the company subregister. Some kind of procedures still seem to be ongoing, in terms of liquidation. I had shares in my SMSF so might have a higher bar in terms of proving they are effectively dead.
Here's a link to a record of procedures, fwiw...
https://cases.omniagentsolutions.com/documents?dlientid=CsgAAncz%2B6ZFTZVHdCRem6AlGUlhMs071fPT0Ti%2B3y05I3XQABSA5UZpTxqiIgoJ0MrcVry%2FZiU%3D&tagid=953