OnePlus India — Oneplus NORD 8gb 128gb

I bought Oneplus Nord 8GB 128 GB from your flagship Oneplus Store at Phoneix market city, Velachery, Chennai on 20/12/2020. In the month of June’21, the problem started with frequent battery drains within 4 to 5 hours after a full charge on a minimum use day( only to attend 5 calls) and my google assistant will prompt without anybody touching the phone even after turning the settings of auto google voice assist off.

Also, I used to hear my own voice (echo) when I interact with others and sometimes neither o[censored]s would hear the voice even though we have a full signal. In addition to all of the above, I am having severe heating issues too. I think this particular piece is faulty and has a manufacturing flaw.

Everybody suggested Oneplus Mobile was too good and hence I bought it. But now I am really worried & Repenting and doubting my instincts, whether my choice was correct or wrong as I am the inducer who is facing this issue. Within a span of five months so many complaints. I do not have any third-party software nor use heavily for gaming purpose and I am facing so many issues. My experience is terribly unpleasant as just after few months, the new phone malfunctioned. After investing so much money on the same I get a faulty piece. I wish the company could have done a proper/thorough pre-check on the product before they pack and send the same to the market for sale. I am not happy to repair a new phone within a span of five to six months but left with no option and hence given the same to your service center. But I still have my own doubts about how the performance would be after the service.
Irrespective i gave the phone to the service center for them to look at the same and after 3/4 days they call and say that my product is ready for delivery. When asked what they have done the technician says they have changed the battery and the mother board. (Without my concurrence).
He also said that the problem was not with ONEPLUS and it was with GOOGLE MESSAGE APP and the company have asked GOOGLE to look into the issue asap.
I have escalated this issue to the top Management and they have not taken this issue seriously and have not RESPONDED until this moment.
Their caption is NEVER SETTLE and i am going to follow those caption.