For the national carrier of New Zealand with somewhat state ownership there always seems to be some controversy surrounding Air New Zealand. Price rises due to increasing fuel prices are common but they are not lowered when fuel prices lower. There is also the staffing issues such as the redundancies and pay disputes that are coming up commonly.
Air New Zealand plans fare changes
Air New Zealand is understood to be planning major changes to its regional fare structure, including deep discounts in return for an annual fee to attract more business fliers as the economy recovers. Ref. Source 9