Google — google damaged my display and not taking responsibility!

Address:	Unit No. 402, 4th floor, Skyline icon, near Mittal Industrial Estate, Andheri Kurla road, Andheri(East), Mumbai- 400059
Website:	b2x.com

Service request - gl0099344
Job number - job151485
My phone being in warranty, the back camera stopped working. Since there is no google pixel service in hyderabad, it was shipped to b2x mumbai as advised by google, so t was sent on 8th march. And i got an estimate of 20, 000inr for repair! I declined it and told them to send it back, and they said due to corona pandemic the return was delayed for months!
After many emails and chats with google they managed to send it back and at last after long waiting i received my phone on 18th july. When i opened the package, i was shocked to see that my display had white lines and the phone had become absolutely useless!
I somehow managed 4 months without my phone while i was having online exams and classes by my college! My phone's display was working without any problem when i sent it to google and after i received it from google, in that condition, i was shocked and now my google pixel phone was spoiled by google and they haven't replied to any of my mails since i received my phone!

After getting in touch with google executives, they said "the device may not be in the same condition and we cannot guarantee the smooth functioning of the device"
Why was the device opened knowing the screen had a crack and opening would destroy the display which would cost a lot! Without asking the customer they opened the phone, damaged the display and gave a hefty bill, and now the phone is a useless piece of technology!
Here google is not taking any responsibility for the damage done by them! This being their flagship device!
Very bad & unprofessional way of traping customers.
More over i sent it back again to them for repairing it and the bill was about 900 rupees more this time and with about more than 5000inr for just taxes they did not provide me an option to put my gst number!

2nd time - service request-gl0103319

How can b2x not have that as an option? Or any reputable company?
I fail to understand why this happened only to me! Or this is how b2x or google cheats their customer by opening their phone and damaging things with would give em profit?

I sent it in for a camera problem and them damaging my display and sending it asking for a huge price for a 2017 model phone in 2020 is something to think about!