Xiaomi India — display

Address:

2/1 BRAMCHANDRA NAGAR JYOTI PARK E FLAT NO 11 DHANKAWADI, Pune, Maharashtra, 411043

I have purchased redmi note 7 pro online on 3 months before.
Suddenly yesterday screen of my handset started flashing. And gets off completely (Though it flashes sometimes in between when i press lock button or taps the screen).
I showed my handset to service centre as it is in warranty, they informed me that you need to change the display because it has damaged. They told me moisture is the reason for the damage.
Display will cost around 4600 to 5200 inr.
If your phones are getting damaged due to moisture then there is no reason to pay 15999 inr for this kind of product.
I am regular user of mi and big fan of mi products, looking forward to buy mi smart tv 42” size.
Please help me out with this.
Please note that, i have not made any water damage to the phone.

Yours faithfull
Sanket phadtare