They didnt give me a hard time so to speak . They just asked why I wanted to stay as they obviously knew Sydney had opened up with no quarantine and their are plenty of flights now landing in Sydney if your vaccinated...
but I didnt get a flexible ticket and didnt realise i also got a non refundable ticket so I'm stuck with this flight now . That's pretty much what I had to describe to IO
At the time I was limited as borders was still closed and international prices was over the 5k mark if you found a ticket . But I managed to get one for 5th January for 3000 business