CBRIS20
Signed up for www.CyclingBrisbane.com.au and found this code once registered.
Looks like a generic code that was emailed to me once I requested it.
Give it a go for yourself. If not, register with cyclingbrisbane and get sent your own code.
ADDIT: Cycling Brisbane has loads of coupons including 99Bikes, GIANT and REID. Some are Brisbane specific by the looks.
Happy riding!