All packages we send are tracked. Please be sure to track your order on the Australia Post or Startrack website for any helpful information about your package
https://auspost.com.au/mypost/track/#/search. 
https://startrack.com.au/track/search


Please allow the full time shown for delivery estimated by the carrier before getting in touch. In our experience Australia Post will not open an investigation on a missing parcel until three business days have passed from the estimated due date. If your order has still not arrived we encourage you to get in touch with us and we can open an investigation with Australia Post on your behalf. 

You are of course welcome to contact Australia Post or Startrack directly at any time
https://auspost.com.au/help-and-support.
https://startrack.com.au/support