I can't test exactly the behavior of the application and the available updates since I don't have the necessary device needed to download updates on. Also, the websites don't appear to offer any information regarding the install procedure and supported regions.
If I were you, I would check the location provided by your Windows. Go to Settings and make sure that the location is set to Australia.
Also, the updater you have might be downloading the Europe firmware since it was designed to work only with this version.