Xiaomi India — very very disappointed with my note 6 pro (phone) experience

This is my first Redmi product and I bought this earlier this year (my phone is less than 1-year old) after convincing myself that it is indeed a good brand. I have used Apple and Samsung phones in the past and it was a tough decision to move away from them, but considering the product range and features offered by Redmi in recent times (and of course the attractive price tags), I had finally made up my mind to go for a Redmi Note 6 Pro. But I have had a really really bad experience with my phone that now I think "Will there be any satisfied customer of Redmi at all?"

My display started behaving crazy after like a month or so and I was waiting for an opportunity to take my phone to the nearest MI store to see if it can be replaced under the warranty. As luck would have it, my phone fell down and got broken before I could take it in for replacement, and so I had to pay (for what was actually a faulty display) out of my pocket.

The new display also started behaving crazy about a month or so later, but it fixed it itself in a week or so (before I could take it to a store again). After a few months, now it behaves crazy again. I really wonder what kind of design / hardware can this be, that its so unpredictable and unreliable. It is almost as if I am at the mercy of my phone's behavior every month.

It's hard to believe that 2 displays can go wrong within a year, unless they came with "manufacturing defects". I am feeling like I am being pushed to pay for the manufacturer's fault here. On top of this, both times I had very expensive screen-protection guard ON, that also has to be replaced every time the display fails. This is ridiculous. Can somebody explain why these failures in display? Are these known issues with the product??