Yeah, any Australian based seller/supplier I consider are second tier stockists who receive a trickle of items over time. That includs PC, Figuresdirect and fellow forumers who mass purchase for others. So I expect a delay in receiving the item and accept that others in the same pre-order group may receive theirs first.
If you want an item first off the bat, order from Japan or US based stockists but expect to pay a premium. You get what you pay for.