Unfortunately, that’s the minimum shipping cost to Australia unless you spend over $150 USD (another Aussie here). Since I think it it was the NTAG rings that you were looking at, if you’re willing to wait quite a while Aliexpress is not a bad source, with really low prices and cheapish (though could still be as much as the ring 
) shipping - e.g. https://www.aliexpress.com/item/32986043919.html.
I hope after having some fun with a ring you’ll join us as an implantee 
- it shouldn’t be too hard to reach the $150 free shipping threshold then considering spending over $94 but under $150 on products + the shipping cost is no better than spending $150 with said free shipping. There’s always merch, accessories, other lower cost implants like the xLED etc.