With load shedding at it peak , customer service at its lowest

Where we are in our country, inverters have become a necessity, especially for those working from home . Purchased the inverter last year September , 4 weeks ago the fault sign came on , took it back to the store to be told the repair and give me call back once done. This was supposed to take a maximum of 2 . To date I have been able to reach any from that department, dispite my query being escalated numerous times . It’s extremely disappointing that customer service is so poor