Sometimes a change of address or ISP provider can inadvertently show you as being outside of New Zealand, double check that your IP address shows itself as being within New Zealand. To do that you can use https://whatismyipaddress.com/.
Make sure that your time zone on your device is set to NZ.
Try clearing the cookies on your browser and restarting.
Double check that you are on the most up-to-date version of the operating systems and apps/browsers that you are viewing OnDemand through.