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.
Fair Work can only try to resolve the issue and it appears that the employer is not going to agree to pay the whole lot. As such your daughter now needs to sue them in the Magistrates Court for the money as a debt.
She should also check and make sure that she has been paid her superannuation contributions. If they have not been paid she should report them to the ATO.
The process for debt recovery, for the unpaid wages, can be found on the following link.
She has to take it to the next step and also claim the court costs and any interest.
I hope this makes sense and is of assistance. If there is nothing further
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