eBay International shipping and delivery gives the option to prepay duties and fees at checkout. in case you pay back now, the overall cost is fixed.
you may defer duties and costs until finally your order arrives. https://www.ebay.com.au/str/pacificpearlsinternational?mkcid=1&mkrid=705-53470-19255-0&siteid=15&campid=5339072275&customid=&toolid=10001&mkevt=1