I requested the refund through Air NZ's Whats app and had my refund issued back to my card a couple days ago.
Itinerary was AUS-NZ-AUS all in 1 ticket, Easter for outbound and NZ Queen's Birthday weekend inbound.
QF on the other hand, Called and said the refund will be processed (without any fees) but have not even received any confirmation email or refund what-so-ever.