Effective 22 August 2016, INZ have prohibited students to change their sponsors when in New Zealand. Instructions have been amended to only allow sponsorship of foreign fee paying students in the tertiary sector who are onshore where they are being sponsored by the person who sponsored their initial (offshore) application.
This would mean that you only can use the same sponsor who has initially sponsored you from the home country. Otherwise, the application will be declined (if you have no other options). This is a very drastic change and we know that many people will be affected by this new rule. Spread the word and let your friends know!
All the best,
Immigration Centre Team