Why I got a ban on non obvious reason?

[24194499]

Greetings,

I logged in to the game yesterday but today it doesn't.
When entering the game found that my character has been banned . Please write why.

Warrior level 51，Alliance, nickname- Ziwu.

[Benevael]

Greetings,

The account associated with character Ziwu on the PVP server has been banned for Hacking.

Regards, GM Team.

[24194499]

Greetings,

Could you tell me more about “hacking”?I don't know what it is.
The last time Ziwu was online is that he rided from Darnassus to Gadgetzan and then he was off line at the inn.
I don't know what things I did are wrong that cause Ziwu be banned.

[24194499]

Greetings,

The account associated with character Ziwu on the PVP server has been banned for Hacking.

Regards, GM Team.

Greetings,

Could you please tell me how to save my account?
Now I lose it with a strange reason.
How to prove that I am not a hacker?I'm not really.
I don't even know what a hacker is.

Regards,Ziwu.

[Nathrizyr]

Greetings,

Offense confirmed. Ban will remain in place.

Regards, GM Team