Manfred wrote: I will try to say this in easy English.
First you say your friend used your account, and that your friend shot down his own team.
Rizkiridho wrote: I have the same problem my game name is HeavyShooter.my Account banned because i let my Friend play my Account when i'm trying to play my account was banned i ask him,then he said he shot down his own team.please fix this
Then you say you won't bomb or team kill anymore.
Rizkiridho wrote: I will never bomb my own hangar,team killing anymore.please unbanned me 
Then you go back to blaming your friend.
Rizkiridho wrote: My Friend play this game using my account
You bought the game. Then you lost your right to play the game, twice. After one problem, we un-ban players when we think they will not teamkill anymore. After two problems, it is hard to un-ban a player, because no one trusts them. Especially when you keep changing your story.
Maybe your story changed because you did not understand my English. But I believe that your story changed because you just wanted to apologize and be able to play again. It is difficult to trust you. I will ask the moderator group what to do here. I think you should be banned forever. They may be easier on you.
Manfred
Riskiridho,
If you have trouble understanding any part of this message, copy the text into something like "Google Translate" so that you can see it in your own language. I have tried to keep the sentences simple.
The moderators have agreed to give you ONE more chance.
Please understand that it does not matter who is using your account. YOU are responsible for your account. If anyone uses your account, and teamkills, uses bad language, or breaks other rules in the game, your account will be permanently banned. If someone is hacking your account, change your password.
If we receive ONE complaint (description from a credible player, or screenshots from a new player) about your account's breaking rules, your game account and your forum account will be banned permanently.
If you need to complain about other players' behavior, take a screenshot and post it with a description to this thread. If you do not know how to take a screenshot, search for instructions for your device, and know how to do it BEFORE you start playing the game. This is friendly advice. Any complaints from you without supporting screenshots will not be very believable because of your past history.
***Do you understand everything I have written here?***
I look forward to seeing you in the skies. I think everyone else is too.
Manfred