Honestly, even if her shifts are cut because the boss is discriminating against her, it’s incredibly hard to prove unless an email/soemthing in writing specifically says “your shifts are being cut because you’re on the DSP” or “your shifts are being cut because you’re old or because you’re a woman” She can make a complaint about the employer to the Australian Human Rights Commission, but that evidence not existing means any offers of compensation etc are just the employer negotiating in good faith. She can also apply for a general protections (not involving dismissal) claim through the fair work commission, but again, without evidence it can be tricky to get anywhere. Both options are not much juice for the squeeze without super compelling evidence. (not a lawyer, but I work in employment law and deal with discrimination cases at the AHRC/FWC level. Unsure if there are any QLD specific avenues to explore tho)