Must be a glitch, I applied 30% off hungry jacks large meal but it discounted the entire meal.
With Dash pass, it waived the delivery fee (for orders over $20) so I just paid the service fee.
Example:
Grilled Master large meal: $23.55
Discount: -$23.55
Delivery (dash pass): free
Service fee: $2.36
= Total: $2.36
Not sure how long until the glitch is fixed!
Worked on iOS and Android app
Edit: make sure to apply the promo at promotions section
@kingdingaling: You have not been on OzBargain long enough to understand this isn't the first loophole.
Many have come, and many will go. This was just pathetic service.