Hey - The following was quoted from Vodafone's official site here http://www.vodafone.co.nz/help/mobile-phones/unlock/
Simple steps so that your mobile will work on another network in NZ or overseas (with another network's SIM) online
How much does it cost?
- There's no charge to unlock a mobile that was purchased more than 9 months ago
- There's a $30 (inc. GST) fee to unlock a mobile that was purchased less than nine months ago
How to unlock your Vodafone mobile
Simply select the button below and follow the steps to get the unlock instructions for your mobile. A link to your unlock instructions will also sent to the email address you provide.
Before you get started
- Have your IMEI number handy. To find your IMEI number, enter *#06# on your keypad or look under your mobile phone battery
- If your mobile was purchased less than 9 months ago you’ll need your credit card