Travel Reimbursement Denied Because I Cancelled Returning Leg - What Now?

Heya,

I had a returning flight from Jetstar a month or two ago that was cancelled due to engineering requirements and they told me about a reimbursement policy of $150 per night plus $30 meal allowance per traveller. So I hopped on this bc my god i just wanted to go home and this would make it a bit less painful. A few days later the flight gets cancelled due to weather issues and the next booked flight is two days later. It would have been earlier at a shitter time, but i was on the train and didnt't want to deal with it until I got to the next location. When I called them up, they insisted on seeking travel credit but I haggled my way out of it and got a refund instead. I thenbooked with rex to go home earlier albeit paying a bit more.

Just recently, I tried to seek a reimbursement for the accommodation costs but unfortunately they said I was unable to because I cancelled the returning flight. When asked where it was in their compensation and refund webpage they could not tell me. Is it me or is this not available on that page? They also referred to a policy that returning on the recovery flight is a requirement to claiming reimbursement for accommodation and meal allowances but could not find it on the page either.

So what now? I saw a bunch of links to a few places to seek further compensation but don't think they apply to me as taken from their website:

Depending on the circumstances, you may be entitled to further reasonable compensation under law (including, where applicable, the Australian Consumer Law, Consumer Guarantees Act NZ, the Civil Aviation Act NZ, and the Warsaw or Montreal Convention) in addition to what we outlined in the tables below.

I was looking into ACL but could not tell if it was covered under their failure to meet obligations to the consumer gurantee.

Also from the way they spoke, it sounded like there was an opportunity to get the reimbursement if I had done it immediately prior to boarding the returning flight. Is this the case or have I misinterpreted it?

edit: yea so im lazy so won't be doing anything lmao