Yes

Yes it's been 18 days when issue came

They gave coupon for what I payed. Otherwise only option is to repair which I didn't want.

1.22L I payed for 512gb variant, but had to buy 256gb for 1.3L so 8k extra

I have submitted my device to Samsung service center highlighting the issue. I demanded replacement of device. But they said replacement can't be done after 18 days from the date of purchase. The said they can repair or issue a refund coupon for the ...