The Congratulatory Message Service is a way of acknowledging people's special anniversaries. This service is available to all New Zealand residents free of charge.

To apply in New Zealand contact the:

Congratulatory Message Service
Department of Internal Affairs
PO Box 805
Wellington 6140
Telephone: (+64) (04) 470-2974
Fax: (+64) (04) 470-2921
Email: congrat@egs.govt.nz

The Royal website has all the information you would ever want to know the the British Monarchy.