Did you or someone else make contact them and ask for a final farewell trip?I did use Transdev's enquires web page to make such a request. All I got was the auto-response from their computer. No real response was received.
It probably got filed in the 'nutter' folder folder and ignored.
The trouble is Transdev are only in it for the money. They will do what exactly TfNSW asks them (and pays them) to do. No more. No less.