UPS stopped working and customer support is useless

I bought a 'Mecer Home Office Inverter Trolley UPS 1.2KVA(750W)+High Quality Batteries' from Takealot.com in April 2022, the device worked fine until Halfway January 2023, I reported it 2 weeks later, and until today I am still waiting for assistance. You can only reach support via email, there are no contact numbers.