Why is there a SMS reminder when the traffic exceeds the arrears?

When your package traffic runs out, there will be a SMS reminder. If there is a delay, it is not excluded to continue to use traffic data. At this time, you can't monitor the traffic you use in real time. You need to disconnect the network and send the data back to the system for statistics. SMS reminder is only an auxiliary function. It is suggested that you can send CXLL to 100 10 to inquire about traffic usage.

For more details, please contact Unicom customer service.

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