How to activate EDU overlay package via SMS

There is no offer of 5 yuan and 40 hours, and 10 yuan and 40 hours;

There is no way to superimpose it on the original edu package. I have consulted 10086. Other information is false

Activation: You can activate the college WLAN 10 yuan/20 yuan/40 yuan package by sending "KTEDU10/20/40" to 10086. It is activated in the same month and takes effect in the same month.

Change: You can change to the college WLAN 10 yuan/20 yuan/40 yuan package by sending "BGEDU10/20/40" to 10086. Changes made in the current month will take effect in the next month.

Cancel: You can cancel the package service by sending "QXEDUTC" to 10086. If canceled in the current month, it will take effect in the next month.