How does the dollar discount offer work in the Coles four-week promo?

Let's use $50 as an example. You'll get the $50 discount loaded to your Flybuys card after your final shop in week 4. The discount will be applied to your next shop of $50.05 or more when you scan your Flybuys. You need to use your $50 within 30 days of it landing on your account.