Horrible after sales service

I don't know where to turn anymore. I bought a coffee machine from 4home.co.za March 2022 and it exploded Feb 2023. I had a 1 year warranty. I contacted both 4home.co.za and their supplier numerous times to collect the coffee machine and fix it under warranty. Eventually 15 March the machine was collected from me. No response since. Somebody phoned me around beginning April to ask if I received my new machine yet. I said no. And again I have sent numerous emails asking for any update without any reply. Today is a month after they collected the device and almost 2 months since I logged the issue the first time. I have since bought another coffee machine from them. I just hope nothing happens to the new one I bought.