Air New Zealand Air Points - Which sub class those fares booked under?

Hi guys, I'm just about to book my flight from AKL-WLG with NZ, however, I don't know which sub class those fares booked under, for example, Flexi Saver and Flexi. Is it U, E, O, Y, B, M, H, Q , T, V or W? How do I find out?

P.S I will be using SK's membership to receive points.

Thanks

Flexi - YBMH
Flexi Saver - QVWT

UEO is premium economy which doesnt exist on AKL-WLG (but may be including in the buckets for pax with connecting flights).

UEO is premium economy which doesnt exist on AKL-WLG (but may be including in the buckets for pax with connecting flights).No UE or O buckets exist for domestic services. Pax are usually booked into the Y bucket for them.