Deciem (The Abnormal Beauty Company) is the company behind very popular The Ordinary skincare products. For the month of November, they are offering 23% off their range. Their website and stores will be closed for one day on Black Friday (29 Nov).
Shipping to NZ is free for orders over $40, otherwise $9.50.
If you have no idea where to start, please refer to their regimen guide for example routines targeting various skincare concerns.
They also make foundations (~$14 NZD) in a wide range of shades.