Why can't I open the service used by SMS to remind traffic?

If the traffic SMS reminder service cannot be handled, it is not excluded that the number is caused by the following circumstances:

Error in processing 1;

2 Your mobile phone is in an abnormal state such as arrears and downtime;

3 Some business processing functions are affected during the billing period or at the end of the month. It is suggested that you can handle it after the billing period or contact Unicom's manual customer service with the number.

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