Advice if your iPhone/iPad is registered as living overseas.
This does not apply to Android mobile devices.
If you have recently moved to Australia from overseas and your iPhone still thinks it lives in another country, then you will not be able to see the Mims Australia App in the iTunes store.
You will need to change your iPhone settings to be in Australia. This may also need to be changed in iTunes. Once your phone "lives" in Australia, you will be able to see the iMims App in your iTunes store.