Australian consumer protection rules for any Australian booking online regardless of which country the cruise is in. And gratuities are included as is any applicable tax.
This issue is so entirely dependent on which country you are travelling to. I wouldn't expect any issues in an Australia New Zealand cruise.
We have been asked to show correct containers in Indonesia, Singapore and Dubai.
Certainly do not wait until you are off the ship to get this fixed up. Many on our recent cruise were told an issue would be fixed once they all got home. It wasn't. Divide and conquer maybe their strategy.
I was originally booked on Princess for Japan 2025. Not only are the prices even worse than Celebrity but many were already booked out, 12 months in advance.