Your delivery has a tracking number but it doesn't have any updates?
In some cases your order may be shipped from my international warehousing based in Hong Kong. They use a direct injection postal service with Australia Post (AP) and many other international postage and courier services. This means that in the case of AP, the goods are shipped directly to Australia Post from Hong Kong. Direct injection shipping means the AP tracking codes and labels are generated immediately but the scanning doesn't occur until the items are "picked up" by AP scanners in Australia (or your specific country).
For this reason you might see a tracking code but no information on movements of the package until just prior to delivery.
Express Service packages don't have the same limitations on tracking as described above.
Please note that the FREE shipping I offer can take up to 12 business days (it rarely does).