Our store processes all orders in Australian Dollars as we are an Australian store.
If you are located outside of Australia (even if you are browsing our goods in your local currency), you will checkout using Australian Dollars at the most current exchange rate. This means you are not being charged more, you are just being shown the order total in AUD at the checkout.
We recommend checking out with Paypal if you are an international customer to avoid bank fees as Paypal converts and charges it in your local currency.