What is the SMS processing method for the King Card Basic Package to transfer 4G traffic?

You can log on to the homepage of the mobile phone business hall and click "Service" > "Deal with" > "Change Package", select the package you think is suitable and follow the system prompts. For those that can be handled, the system will prompt them to take effect next month. For those that cannot be handled, the system will automatically prompt why they cannot be handled.

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