LG Electronics — microwave oven lg

I have bought a lg microwave oven 28 ltr model-mc-2844-eb, convection on 17/12/2015 from ideal home appliances, trivandrum, kerala. The heater of the oven was not working and a complaint was filed on 13/8/2017. Oven was inspected on 14/8/2017. They assured that it will be corrected in 48 hours. But till day no response has been made.in between we contacted twice to the customer service. But till date no response. Such an irresponsible behaviour from lg. Didnt expect such a poor customer service from an international brand. Very pathetic. Will never recommend this brand to anyone. We bought oven 21 months back and this is for the second time our oven is getting repaired.. Very pathetic