LG Electronics — Faulty AC

Since the year of purchase, I am facing same issue... which is leakage of gas. Every year nonstop- I have to raise multiple complaints, the engineers come, 2-3 times, fills up gas, charges me ... Have been requesting the company to replace the product, as its a faulty product... But I get to hear, "not in our policy, will give discount on gas charging"
I need to hold up this company for major inconvenience and harassment.

Same Issue I had raised the complaint in 2019, and 2018...
in year 2020 I wasnt home, hence I couldnt.