Not sure if this is deal worthy but I have made a list of potentially stackable deals between TheFork and Entertainment Book. I only went through Sydney and Melbourne because the other cities only had 10 deals or less so it would of been easy to do by hand.
Amex Statement Credit - Spend $50 or More Get $20 Credit
UPDATE 1 - Expanded search radius for cities and also added Brisbane and Adelaide. Tried searching for Perth but couldn't find any matches
UPDATE 2 - Added Canberra and removed duplicates
UPDATE 3 - Added 30 or so more for Sydney