Why can't I receive the random code from the online business hall?

There may be several reasons why you can't receive the random password when logging in to Unicom's online business hall: 1. Your number is currently in an abnormal state such as full shutdown and loss reporting; 2. Your mobile phone put the short message in the trash can, so you can check it in the short message trash can first; 3. Due to the large number of users, the speed of sending short messages is slow. I suggest you try again later. 4. There is something wrong with your mobile phone receiving short messages. I suggest you change your mobile phone for the test. If the above reasons can't solve the problem, you can contact Unicom 100 10 artificial customer service for processing.