Hunting can't receive verification code

Take Unicom number as an example, there may be the following reasons for not receiving the verification code:

1, mobile phone settings. Please check your phone settings, because it comes with an interceptor or an application you downloaded yourself.

2. Incorrect input of receiving number.

3. If only the short message with verification code cannot be received, other short messages can still be received. You can contact the product service provider that issued the verification code for feedback.

4. If it is still unresolved, you can contact the customer service of Unicom where the number belongs for help.