Given that the 9 for $9.95 (~$1.10 per piece) Tuesday deal was for Newcastle only and QLD have 9 for $10.95 (~$1.21 per piece) every Tuesday of the year. For the rest of Australia the next best cost effective way per Hot & Spicy piece would be this method coming at ~$1.24 per chicken piece.
On the App, navigate to "build your own bucket" and choose 12 pieces of original recipe for $14.95. Click the edit button and change to Hot & Spicy. Add 3x to complete order.
Hot & Spicy is available Australia wide until 10th August.
Edit:
You don't need to add 36 pieces to your order if you feel like that's too much, if you just want 12 you can choose 12 and then pick 2 other options to complete order such as fillets or wicked wings
Confirm with the store when confirming online order that all pieces are Hot & Spicy
Yes, 36 pieces of chicken. At 2-3 pieces a meal, that would be 12-18 meals. I sometimes opt in for the wings to reduce the price and the quantity.