Looking at the price tag, my first thought was "how bad can this Chardonnay be?" - but according to the reviews it's pretty decent, got 4.1 stars out of 5 based on 10 feedbacks.
Just to clarify, each bottle is selling for $5 individually or $4.80 in any six, so you'd be paying $28.80 for the case of six or only $57.60 for the dozen.
Woolies has the next best price as the Wolf Blass Eaglehawk Chardonnay is on "super saver" special at $6 a bottle, and prices go all the way up to $10 a bottle elsewhere (First Choice, Just Wines, Liquorland, etc).
The average market price works out at $8.15 a bottle, which means that you're saving just over 40% off this Chardonnay.
If you buy two dozen of this white (you could ask your neighbours and friends if they would like to place an order together) you could also get free shipping at Dan's with the code DAD100 - valid until the 28th of August on orders over $100.