Geewiz ignorning the Consumer Protection Act and prejudicing its customers

I collected an inverter and battery combo on 6 May 2022. I started using it in June 2022. By 28 June the unit was not working. On 6 July, I returned it to Geewiz. The unit is vital, as it is supposed to keep my attorney's firm's fiber and computers running. Geewiz refuses to refund me. They are offering a loan unit. I have explained that I stay far and have already made two trips. My firm is in Nigel. I have lost hours as a result of power outages. The unit had cost a lot and I acted by buying it as a proactive measure to not be in this situation. Geewiz is ignoring the Consumer Protection Act.