Expanding upon the post by lparry (https://www.ozbargain.com.au/node/693511) regarding this sale due to extra discount. Koala has added an extra $50 off already discounted prices for orders over $500. Use code EXTRA50 This sale ends tonight.
It is unclear if this stacks Shopback or Cashrewards as EXTRA50 is an unlisted coupon code yet Shopback and Cashrewards at the time of writing have 10% cashback listed. I have had success in combining offers from Koala with the Commbank $80 back for orders over $500 yet terms and conditions indicate it should invalidate their cashback. Use with caution.
If somebody from Shopback or Cashrewards is reading this could they confirm whether EXTRA50 will invalidate cashback?
Mod note: removed duplicate offer from title.