Hindware Sanitaryware Collection [Hsil] — Geyser tank leakage

We purchased hindware gyser in July month. It is in warranty period. We complaint 1 month back and no resolution. Technician came and made videos and said it is risk if we use it.
We have 1 year old kid and no one is bother to repair it . Calling area head since long but he is not picking any calls nor messaging back very irresponsible.
If any accident occurs to us n kid who will be responsible?
I want my money refund or repair it