Samsung — Request for Free Repair/Replacement Galaxy Watch 4 & 6 LTE (Product Quality Issues)

Address: Kottayam

I am a student from Kottayam, Kerala. I received two Samsung smartwatches (Galaxy Watch 4 LTE and Watch 6 LTE), both purchased from the UK as gifts.
Both devices developed serious issues within a short time:
Watch 4: Display suddenly turned fully pink. No damage or misuse.
Watch 6:
Power button stopped working
Frame paint started peeling badly
Display flickers sometimes
Taken to Dot Com Systems, Kottayam, and I was asked to pay ₹6, 000–₹7, 000 to replace the whole display, just to fix the button.
I already contacted Samsung Support and visited the service center, but no proper help was provided. Since these are product quality issues, not damage or mishandling, I’m requesting a free repair or replacement.
As a student, I cannot afford this kind of repair for devices that failed on their own.