Which department should I complain to?

Black Cat consumer service platform. If you want to learn computer science, don’t sign up for Dane. I am a student of Dane. If you don’t believe it, you can contact me. I have proof. Dane’s teachers are liars. They made all kinds of promises and claims when they signed up. , the purpose is to get you to sign up. After you sign up, no one will care about you. The class teacher will tell you all kinds of things at the beginning, and after a while, he will start to pass the responsibility. When you first sign up, ask the teacher to tell you if anything happens to you or If you have any problem, you can go to the class teacher directly. When you go to the class teacher with a problem, the class teacher will start to say that I can’t help you solve this problem and you need to find your consultant. The consultant will start to say that I am very busy and have no time, or something like that. I won’t reply at first, and when the time comes, even if you want to find someone to help you solve it, no one will help you. I just want to know what the class teacher is for if she can’t solve the students’ problems. Is she brainwashing? What Mr. Dane is best at is brainwashing. You don’t know. Every time he chats with you, he is brainwashing you. Or he will tell you that this major is not suitable for you and ask you to pay money to learn something else. I think it is a lie. Also: It would be quite troublesome to ask for a refund if you don't study in the middle. When you signed up, I told you that if you want a refund, we would process it on the same day. But when I waited for your refund, I had to write an application or something, so I thought Let me ask you whether you are irresponsible for what you say or for your company. If students call you teacher, don’t you feel guilty?