issue with tax rates

Hi there, can you assist with the domain mentioned below, we have installed paid version of WooCommerce Multi Currency plugin and having issues with tax rates in Australia which is our country.

It seems that the WooCommerce Multi Currency plugin not telling search engines that in Australia, we need to index prices including GST and not excluding GST.

In other countries, we display prices exlucding GST and thats working as it should.

When we view prices on our website, they are all inclusive of GST and thats correct.