Originally Posted by Outbound24

Correct - if they are on a Star Alliance flight also on the same day.

But now I've just been messaged back from Star Alliance asking if I was Koru Gold (which I'm not) and they replied that I don't even have lounge access myself now, let alone bringing in a guest according to the link they sent.
"Thank you for confirming this. Unfortunately, lounge access is only available to Star Alliance Gold Customers. To find out more about the status benefits, please follow this link.... (which I can't post until I've hit five posts, which should be after this one)

Which kinda contradicts Air NZ partner lounge info?