As a member of VUWTC you are (on presentation on your membership card) eligible for the following discounts (Note that this would usually exclude sale items):
Additionally, club membership also entitles you to FMC (Federated Mountain Clubs) membership, which gets you additional benefits (see here for full list) - especially 30% off an annual hut pass.
FMC cards usually arrive half way through the year, but if you are lucky there might be some left over from the previous year - just ask the treasurer or secretary.