My name is ***** ***** I am a NSW Solicitor. Thank you for your question, and will do my best to assist you with your question. Please understand this is not legal advise but a guide to assist you.
If you have evidence of your shifts and the fault to pay you can commence proceedings in the Magistrates court. and sue them for the money plus interest and costs. QCAT may not have jurisdiction.
You should start asap. Send them a letter demanding the money and give them 21 days to pay and if the dont then you will sue.
Here is a summary of the process in QLD
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