My partner tried to use her credits yesterday (she has permission to travel). She had two credits for WLG-ZQN cancelled flights. He trip next week is ZQN-CHC. She was told by the Air New Zealand call centre that she could only apply the credits to future WLG-ZQN flights.

If this stands there will be an uproar. I have credits for 19 cancelled bookings. I want to be able to use those combined credits to pay for any Air New Zealand travel I choose. If I can only apply the credits for each of those 19 cancelled bookings to new bookings that are exactly the same routes, they will be mostly useless.