Can do a price-match at Bargain Chemist + use your Amex card to pay to get the $20 off $100 offer) in your Amex app for final price of $128.49.
You must add a note during checkout with link to Pakuranga pharmacy for BC to match the price (you’ll get a refund later).
https://www.chemistwarehouse.co.nz/buy/99109/waterpik-waterf…
$131.99 Chemmy Warehouse + $10 off $100 spend with newsletter sign-up trick ($121.99 delivered).