Why can't my 4g card check the traffic by SMS?

If the traffic usage cannot be queried, the following situations are not excluded:

1. "Random SMS" login cannot be queried, please login with service password;

2. The system is busy, so it is suggested to change the time period to query;

3. The period from the last day of the month to the beginning of the month may affect your query on traffic usage;

If the above reasons are still unresolved, please contact Unicom 100 10 for manual handling.

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You may also worry:

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