Pop into a shop
Lots of stores around New Zealand have Vodafone eklick EFTPOS terminals where you can Top Up with cash, credit card or EFTPOS. They'll usually have eklick EFTPOS signage to help make them easy to find. We'll TXT you to confirm your Top Up and let you know your new balance.
Use NZ Post
Top Up your Prepay at any NZ Post outlet (a Post Shop or Books & More store) with cash or EFTPOS