The following are contact details for the NZ Transport Agency:

General border and entry queries

borderandentry@nzta.govt.nz

NZTA Border Inspections (BIS Data Entry)

Private Bag 11777
Palmerston North 4442

Tel: 0800 804 580 (option 4)
From outside New Zealand: +64 6 953 6200

Email: info@nzta.govt.nz