I went online to buy few items and found AU_EXTRA25 is still active on sales item.
Not sure how long but worth a try :)
Note: Any transactions using Nike.com.au are considered as international transactions. To avoid any foreign fees, use no foreign fees credit card. e.g. Bankwest Zero Platinum, Commbank Diamond Amex etc.
31/1 - It has expired.
Need to edit the title… Just tried to purchase something but there is no free standard shipping…. Can confirm the code is still working but no free shipping which was a deal killer.