The helpful reply from the company:
Taxes are calculated for us by a company that specializes in this stuff, based on your billing address. Many countries charge tax for downloads but I don't know about Australia specifically.
A tax on intangible products?! What the fuck?!
It exists in the realm of ones and zeros, and it's still LEGAL to MAKE A TAX PROFIT from NOTHING?!
That's just fucking nuts. My country and likely most make a PROFIT on AIR.
No box, no disc, no manual, just RAW DATA.
(When you ALREADY fork over cash every month for an INTERNET PROVIDER.)