Just found this deal, I used it to buy some fare (got confirmed from airline). This will give you 10% Cashback on the fare component for international flights, not on taxes and other charges.
I just got an email for cashback with 5 minutes of booking :)
Cashback for Domestic Flights is shown in USD. This will be converted to AUD within your account.
Cashback may only be paid on the net flight ticket purchase value excluding GST and all other taxes, levies and surcharges.
Cashback will not be paid on any expenditure outside of the base accommodation rate. (i.e. room service, in-room movies, parking, dry cleaning, etc).
Cashback may not be available until 90 days after the completion of travel.
Use of any coupons and/or incentive offers/links (including Amex/Mastercard/Visa discounts) will invalidate any cashback and/or any cashback claims, including our cashback guarantee, unless specifically listed on this site.
You must return and click through from Cashrewards every time you make a new booking/transaction/purchase.