Pureit / Hindustan Unilever — water filter is not working due to faulty circuit

Address:

House No. 1255, sector 10 A, Opposite Housing Board Colony, 122018

I have purchased pureit marvella ro+uv on 21st feb 2018 and now on 24th june 2019 it stopped working.

I have booked a complaint for the same and the support representative visited my machine and said that the circuit board is not working and causing issue. He advised that it needs to be replaced and that will gonna cost me somewhere between[protected].

I have asked how can the circuit could get infected but he haven't any asnswer for that. To get my machine fixed i haved asked him to replace the faulty part, but he said that the part is not in stock and i have to wait for another day.
From last 4 days i am waiting for the same.

Due to this i am purchasing water from outside or borrowing from the neighbours from last 4 days.

My question is, how can a machine become unresponsive in that short time and become a burden. It looks selecting hul pureit product was the worst choice i have made.
My brother is using aquaguard and that is working fine from last 4 yrs without any issues and even customer support service is far better.