Been a while since I've seen an active code for 3 pizzas and sides delivered for around $30. Working in QLD, not sure about other states. Hope this one comes in useful!
Choose from Value, Extra Value, Chef's Best, Traditional or 4 Topping Mogul Pizzas (usual surcharges apply for Chicken & Prawn).
There's actually a code (966114) for $29.95 plus you get an additional drink and garlic bread. Note, it doesn't seem to be nationwide though
https://www.ozbargain.com.au/node/207129