For those who are looking to refer a friend or family to this deal - https://www.ozbargain.com.au/node/831797 , or to purchase for themselves, there is a good 40% Cashback offer for Peak Chocolate.
A good option is the Starter Bundle which is discounted and requires no code - https://peakchocolate.com.au/products/starter-bundle
Shipping is $12.95 to Melbourne.
I've never purchased Peak before but they have very good reviews online (all 4/5 or higher). It seems to be healthier than most chocolate out there.
They use maltitol which is literally one of the worst and digestively least tolerable artificial sugars that exist. Disappointing.