LG Electronics — Wifi is not working in my lg smart tv

Address:

4/26,MARIYAMMAN KOIL STREET, ERUTHUKARANPATTI

I purchased lg 43 lj554t tv on 20.1.18 in which warranty was 12 months.
In 6 moths of purchase, wifi was not working. They took 3 months and atleast 5 persons visted during the period at regular intevals and cleaned the wifi device and said ok. After 4 months, the same problem persisted. When i made complaints, service engineers said warranty was over. Then i complained thro online. After several arguments, they replaced the wifi system. But after 3 months, the same problem started. When i tried tanjore service engineers, they do not respond to me. I have been facing the same problem right from the purchase. So i request you to settle the issue.

My no: [protected]
Tamilnadu