The service of Zhuhai Tietong is very poor. Where can I complain?

I didn't register Baidu until I saw someone talking about Zhuhai Tietong.

Ask Zhuhai Tietong how it is, and whoever uses it will regret it!

The maintenance personnel of CTT don't know how to enter the website to surf the Internet. They only use one finger to type in the password of the account on the keyboard to establish a network connection for you. If it is an English system, they won't!

I can't help it, just don't need Tietong in the future.