Dude, if you're gonna use social engineering use it right.
First off, use correct grammar...
Secondly, makeup a better story.
Don't say someone was on your account hacking, cause it's obvious they wont believe you.
I always use this method,
"Dear (In whom you're speaking with),
I have came to a conclusion that my account was falsely banned.
It may have had to do something with the recent lag, so I must have been reported by someone who thought I was using third party programs in combat arms.
I hope this situation can be resolved shortly, as I dearly love to play games by Nexon, and i'm definitely looking towards a response from your team.
Sincerely,
****** Hacker"
, Social Engineering ftw