Pathetic customer service for mecer inverter

Took the Mecer inverter to Mustek in Midrand on 5 Jan for assessment and a quote. The inverter is only about 2 years old and all of a sudden it stopped working.

I have been trying to call the services department but the phone just rings, I tried to call sales etc. Its a miracle if someone picks up the call.

I eventually got through to the receptionist, she said that it is in the queue. No confirmation as to when they will assess it and definitely no indication how long the repairs will take. When asked when I can expect the quote and feedback for the assessment, the response was that she cant say and they have inverters from Nov 2022 in the queue.

Is this product defective for there to be so many inverters in for repairs? How can they just ignore customers and not provide any update? There's radio silence from them and when you try to call them, no one answers. Is this their standard level of service????

Can someone provide a status update and when I can expect the feedback on the assessment.

What is the point of buying an inverter if I cant use it??????