Hi Barry
Just to expand on newbe's reply.
FYI there are FOUR offices of Archives in NZ.
The main one is in Wellington, the other 3 are in Auckland, Christchurch, & Dunedin.
The records you are interested in are held in Auckland, so what they are saying is that you need to contact the Auckland office (email & snail mail addresses are given), rather than the Head Office in Wellington.
Regards
Bren.