Had a quick look don't think anyone has asked this, hopefully not a double up!
Have a question regarding bring goods back, if you claim TRS and get $220 back that's all fine as it's under the duty-free limit of $900 per adult?
Information from these two websites:
https://www.abf.gov.au/entering-and-leaving-australia/touris…
https://www.pointhacks.com.au/gst-tourist-refund-scheme-trs-…
Declare any goods you bring back to Australia, for which a TRS claim was made by you or another person when the goods left Australia.
If you bring goods back into Australia for which a GST refund via the TRS has been claimed, the goods must be declared, and if the value of those goods (combined with any other overseas/duty free purchases) exceeds the passenger concession allowance, any applicable GST and/or duty may need to be paid unless another concession (example, all personal clothing – except furs) is available.
a duty-free limit applies to each passenger entering Australia – $900 for adults
If your TRS GST refund in $220 it means the goods costed $2200 which is above the duty free limit of $900.