This deal is back after nearly two months, interestingly there is no Subscribe And Save this time
HOWEVER
Shopback are offering $2 bonus cashback on top of their usual cashback rate today only, which makes for a good deal. Expired now, it's over, too slow, all is lost.
If you can't find anything to spend your bonus $2 on, at least buy some Napisan and clean your clothes. Seriously.
In case you're interested it looks like Amazon are matching Chemist Warehouse again.
Thanks OP, bought 2.
$13 at coles for 2kg