Havells India — Gas leakage problem in window AC

I have purchased 1.5 ton windows AC on 28th March 2021. After 1 and half year we have to face a gas leakage problem, which we had resolved ourselves. Now from last 2 days there is a sudden fall in cooling and a leakage sound with bubbles is being observed in the front coil.
Sir, we belong to a middle class family and for us it is very hard to purchase an AC. Now it is very shocking for us to find these types of defects so early after the installation. We can't afford to rectify this problem. Sir please do needful as earliest on humanitarian ground. Sir now it is from your side that our trust from such a big brand will be maintained.