Question: what do i need to do to renew my nz passport?
Answer: referee details - their passport number, name, phone number, email address (optional), date of birth.
a digital photo - taken in the last 6 months, in colour, as a . JPG or . ... 
credit card or debit card or prezzi card - no eftpos, Paypal, electronic bank transfer. A standard adult passport costs $191.