I am not receiving any OTP / verifications texts from apps like Amazon, Facebook etc. I reset my network settings and my phone, and this still doesn't work. None of the OTP messages, regardless of the company sending them, are coming through.
I'm sorry to hear you are not receiving specific texts. We can help. When did this start? Was this after an upgrade? Can you receive picture message and browse the internet with Wi-Fi off? -Joe
Did you make sure SMS is enabled on your iPhone?