The full amount must be paid with your linked Westpac card.
Stack with Coles Gift Card: 3% Cashback on $50 & $100 (Was 1%) @ ShopBack.
Be sure to buy through the upsized listings, regular cashback is 1%.
The Coles Gift Card allows you to shop in all Coles Supermarkets and Coles Central stores nationwide.
This gift card can only be used in-store.
FYI 3% upsized cashback is only for $50 and $100 denominations