Thomas Dux Grocer is part of Woolworths and is doing 10% off on everything between 20-22 Sep.2013.
No coupen required as far I was told ( so far). I rang Glen waverly ( VIC) store and they said its store wide offer known to all.
Also, can find details on their facebook page.
https://www.facebook.com/ThomasDuxAustralia
You will be able to use woolworths gift card ( discounted if any,purchased via entertainment book - 5% off) and even can use ING pay wave ( 5% cash back) to save more.
Problem with this store is that they are way over priced to begin with. It is a fancy Woolworthswith with higher prices for the luxury of feeling like you are shopping at a small deli or market.
So even with 10% off it is overpriced.
For example: bananas $2.99 vs. 3.99$