Is there anyone who can tell me if there is any space+ seating left in the PE section of a flight that I am on? I booked works for myself and seat for my child. They are showing no open seats in the PE section. I thought it might because it was a mixed booking, and if so, I was going to be really pi**ed off and I'd ask for a refund back to seat + bag. But they told me that every seat was taken in PE for both flights.

29 September Auckland-Brisbane NZ 0135
1 October Brisbane-Auckland NZ NZ 0138

Thanks for any help you can provide.