I am not sure how to post this, but for those who registered for the supporting local businesses with Amex
https://www.ozbargain.com.au/node/155001 - you receive $5 credit for a $20 spend.
I had problems finding stock of cheap Aptamil De Lact baby formula until I rang up the Royal Street Day & Night Chemist (Chemmart) in Yokine. They had stock for $17. I added the token $3 item that was on sale to make it $20. And received a $5 credit.
Nestle Nan HA Gold, Aptamil Gold HA baby formulas are $24.95. Then you get the $5 credit pre Amex card.
Huggies 240 wipes are on special for $9.95. Buy 2 and get them to charge you $20, so you get 2 x 240 wipes for $15.
They had some nappies on sale as well there. Once again, good stock of baby formula.
Also, if you sign up the chemmart rewards program, you get 10% off your first purchase.
Also, they are running a deal at the moment where anything that fits in their paper baby, you receive 20% off (formula was excluded). http://www.chemmart.com.au/