Asus - Asus VivoBook 15 Core Gen Laptop wartrently and quality of product

I purchased Asus VivoBook ** Core i*
*th Gen - Laptop from Flipkart having one-year warranty @₹ *****.**.
I sent the laptop to be repaired under ASUS warranty thinking they would honor their warranty and fix the issue.
They revert to me asking to make a payment of ₹ *****.** since bottom case damage and mainboard liquid logged.

First of all their statement “mainboard liquid logged” is baseless. The mainboard of a laptop is packed inside the compact body of the laptop.
And every system is designed in such a way that it is fully resistant to such issues. And one single drop of water managed to reach the
Center of Mboard without touching its all complicated circuit and other components. if it is only based on prediction then why can’t
It is because of Moister or humidity

Now the question is how could the price of one part (mainboard) is more than the whole actual cost.
Does it mean that the original Mbord shipped with the laptop was a temporary kind of or defective quality and
Now they are going to replace it with the original/ Mboard which costs *****.**.
And remaining items of laptop like scree, ram, disk, processer, etc was valued less items, they Cost nothing. Or since this laptop had some discount offer that’s why the actual Motherboard which was there,
It was a defective or rejected part that’s why it was available for less price?

I asked the same question but did not get any reply .and they continued asking me to make the payment.

Finally, I asked them to return that laptop so that I can at least put it in my home and probably use it as a paper weight

My complin no at Aasus :
SN/RMA (INHVM*****) (L*N*GR**D******)
Email : mjawaid.as@gmail.com