Why is it useless to send a text message to 1069070069 on Unicom's mobile phone number?

This number is the number of Tencent Technology.

This number is generally used by WeChat or QQ users to retrieve accounts, appeal accounts, send relevant short messages, reply relevant contents, and complete private operations such as account retrieval, unfreezing and binding.

The premise of successful operation is that the number to send verification information must be the mobile phone number bound by QQ or WeChat, and sending instructions with other mobile phone numbers is invalid.