Immigration Act 2009, ss 146, 162
Your refugee status can be cancelled, and you can be deported, if you had originally obtained your recognition as a refugee through fraud, forgery, or false or misleading information, or through concealing relevant information. To be able to cancel your status, Immigration New Zealand must also have decided that you’re not really a refugee.
You have four weeks (28 days) to appeal to the Immigration and Protection Tribunal on the facts or on humanitarian grounds, or both (or, if the fraud or forgery and so on was established through you being convicted of a crime, then on humanitarian grounds only).