Hi there... 
I don't play to bf4 for a long time and I tried to play with friends a few days ago. 
after being kicked out from some servers, my friends have verified and I have communicated that I was banned by you. 
I would like to know the reason why, sorry my English, use google translate. 
They are not cheater and I have never used them. 
I have always played in server hardcore from when I started playing bf4. 
I would like to know if I can return to play.

Before appealing your Ban

Please make sure you claimed your soldier on BF4DB to prove ownership of the account you are appealing for. Claiming your soldier is as simple as just searching it on BF4DB and clicking on the "Claim" button on the right side under the "Claim profile" menu. You will be redirected to a different page that will explain how to claim your soldier on BF4DB.

https://bf4db.com/forum/thread/admin-request-how-to-appeal-your-ban-56