So tense.com have been a little clearer from an int’l Standpoint

[Invoice value below 1,000AUD]
tenso .com will charge 10% GST for the following:
1. Total invoice value
2. tenso .com usage fee (handling fee, consolidation fee, special packaging fee and international shipping fee)

[Invoice value above 1,000AUD]
tenso .com will charge 10% GST for the following:
1. tenso .com usage fee only (handling fee, consolidation fee, special packaging fee and international shipping fee)
** 10% GST of the total invoice value will be charged by the shipping company upon package arrival
So basically if it’s under $1k the business charges all the gst but if it’s over the business only charges for the goods then customs I assume put gst on the postage cost.

What a system!