Why did China Mobile wait for the user to use up 800MB of traffic before sending a text message to remind him that the traffic has exceeded 800MB when sending a text message?

Hello, I'm glad to answer your question.

You said that when you received the traffic alert, it exceeded the package traffic, resulting in additional expenses. Generally speaking, if you surf the Internet continuously, and there is almost no package traffic at that time, this will indeed happen, because when you don't have a package, a short message will be triggered. At this point, generally speaking, ordinary users can't react so quickly, stop surfing the internet immediately, or close the data connection. So it's normal for you to say that you have more K, and you have to calculate that your response is still timely, otherwise it will be far more than K.

Finally, my suggestion is that in some provinces, traffic thresholds can be set according to users' requirements, that is, traffic usage reminders. For example, if it reaches 50%, 10, you can send a short message to remind you. You can go to the online business hall to see if you can book it, or consult the local customer service hotline.

I hope I can help you!