My PUBG account have been banned.

 I'm come from China.So my English is blunt. I'm sorry about that.
But,I'm not a cheater.
I had just played the game with my friends,and I lost connection.
Then,when I sign in again,I have been banned.
Please help me what relieve ban.
My Game ID is WRNMMP.

I'm looking forward to your reply.