Why am I not receiving OTP on my mobile?

Related questions

1. What is green pin OTP?
2. What is opt abbreviation?
3. What is OTP verification code?
4. What is SMS Centre number?
5. What opt means?
6. What is the difference between opt in and opt out?
7. How do I get my PIN after OTP?
8. How does OTP verification work?
9. How many numbers is OTP?
10. What is OTP medical?

Tags

1. #another
2. #circles
3. #inserting
4. #common
5. #cause
6. #request
7. #device
8. #issue
9. #could
10. #receive
11. #blocker
12. #handset
13. #different
14. #again
15. #successfully