Everything was fine until I had face major hardware diffect in ultra wide lens its vibrating making unusual noise its just disappointing I paid premium price yet I am not getting replacement Cleary its a manufacturing diffect.

Check if it has camera issue just zoom in and out continuously by switching between 0.6x and 5x or 10x zoom if videos gets blurred and phone vibrates return it immediately

It happened within 18 days of buying the phone right?

Was your phone under 14 days return policy or it was out of that period.

What 256gb? Why they didn't agree to pay for 512gb