Yes initially i had also issues with the 5g tried 5g activated sim and phone after sometime i got the 5g. It is in trial and i am in small town maybe less number of 5g users due to that i may got it.

Did you tried changing default messaging app??

Initially i have used the 45w charger with in box cable completed full charge at 50 min in Air conditioned place.

No only domestic warranty on uae.

That is the same thing happened to me when i tried to add my axis credit card but i added my icici credit card and sbi atm card via otp. I think these because of the merchant because my other two card are Visa but my axis is mastero that doesn't supp...