Just noticed this challenge in the ShopBack app exclusive for Westpac customers. Must use your linked Westpac card as payment.
As there is no $75 gift card you are going to have to buy multiple gift cards until you have $80 worth. Reminder that Bunnings pays you cash if you don't use the whole gift card balance in a transaction (eg. If you spend $10 and use a $50 gift card to pay for the item, Bunnings will pay you $40 cash)
Not true.
Bunnings will only pay you cash if the balance is under $10
So if you spend $9.90 and use a $50 gift card, you will get 10 cents in cash and a new $40 physical gift card.
It's the "smartest" gift card system in Aust.