ShopBack NZ has 100% cashback on Surfshark until 25 Aug, 11:59 PM.
Because cashback excludes tax, you're basically just paying the 15% GST out of pocket once the cashback confirms.
Surfshark has a 30-day money-back guarantee, so if ShopBack doesn't track for whatever reason, you can just cancel and get a refund within that window.
A few notes i gathered from their T&Cs:
Valid for new Surfshark customers only (need to use a fresh email/account if you're existing).
Must be purchased through a web browser, not the Surfshark VPN app.
Disable adblockers, accept cookies on the site, and start with an empty cart so tracking doesn't fail.



Can you pay for more than a month for cashback?