Voltas — VOLTAS AC gone bad in 1 month. Pathetic after sales service. Pathetic Voltas

I bought voltas inverter ac on 24 april. It was installed two days later. On 29th may it stopped working. I raised a complaint and was told that PCB has gone bad. After that started series of complaints on phone and Twitter. Voltas after sales service is so pathetic. They dont care at all. The technician come and say that the ac is fine. The problem is wity the stabilizer and with the voltage in the society. There is no issue with either the stabilizer or voltage. I was using LG ac 1.5 ton before voltas. It worked without any issues.
Voltas is pathetic AC. TATA is pathetic company.
Anyone reading this, pls dont buy VOLTAS.
It's been a month, the brand new AC of two months still isnt working.