Can I ask what the goal of this is? If it's to be able to pool or gift airpoints to someone that can be achieved via the shairpoints set up https://www.airnewzealand.co.nz/shairpoints You don't need to live at the same address either. You can make them a spender to give them access to the shairpoints account or not have them be a spender.

As jawnbc mentions there is the ability to get an additional card where you can spend and it goes to their account https://www.anz.co.nz/personal/credi...irpoints-visa/