Great deal I saw on OzBargain and happy to say it works here in New Zealand as well!
This stacks the free 4 pack of original glaze with $25 purchase with the half price milkshake (Strawberry, Chocolate, Vanilla, Caramel, Mint) and the $10 off $30 spend promo.
Process is:
1) Add 3x Milkshakes of your choice to cart
2) In cart add 'free 4x Original Glaze'
3) At checkout select -$10 from the promotions section.
Have successfully tested with the Newmarket (Auckland) store. $10 promo can be used once per store.
Is there an option for Wellington or is this only for Auckland?