Not receiving verification code texts in iPhone | How to Fix

Guys, I had the same issue. Couldn't get the verification code texts on iPhone for anything at all. I turned on "Cellular Data" and they all came through.

I Fully reset it my iPhone (don’t use a backup) and it worked but I reset it again and used a backup and I have the same problem now

Office hour time from which country?

after reset, I can’t even use wifi🤬

Non of this is working