Tax/gst Being Charged Twice

I have an order that has a Download ALL Images (NO Shipping CHARGED) and a Package purchased (with a shipping charge).

When in checkout the summary displays GST value twice.

When you go to the shipping details screen it displays $0 shipping charge and the summary is showing 2 GST values and total is incorrect as GST is charged twice. as below.

If I change the shipping option to another option that has a $ value it displays correctly and charges correctly.

If I remove the print Package that requires shipping and only have the Download all option in the CART . The summary at checkout still displays two GST fields (one showing a $0.00 value), and no shipping options are displayed as NO shipping details are required.

When you select 2)Payment the summary still displays the 2 GST fields (1 with a $0.00 value), and the value is correct.

How can I get the GST to only display once and charge once when a customer order has the default/top option selected in the shipping  section.

below are some details for the shipping and BUY ALL products.

Settings -> Tax. You have a value for "Tax rate for all non-shipping orders".

And I suspect you renamed the word "Tax" to "VAT" in Design -> Page Text.