What's the matter with China Unicom's cancellation of 40g SMS restriction?

At present, some packages of China Unicom can lift the upper limit of 40G traffic, but the speed limit cannot be lifted.

For example, Tencent Dawang Card is unsealed by sending the message "KTBXLL" to 100 10 for understanding and stamping.

Tips: (1) After capping, the traffic usage in the current month is no longer restricted, and all traffic exceeding 40GB (including Tencent's exclusive traffic) will be charged according to the daily rental fee. (2) If the 40GB ceiling needs to be lifted next month, you need to apply again.