I was playing bf4 normally today, when I went to change servers, it appeared that I was banned, by bf4db on account linked, appears here that is linked to an account that I have never seen in my life, why is this happening? I took Ban without doing anything

May you provide a link to your BF4DB profile or your Battlelog soldier so we can start an invenstigation?

http://bf4db.com/player/1559388756

http://battlelog.battlefield.com/bf4/soldier/king_diamondbr01/stats/1559388756/pc/ my battlelog

That's your other account.  Ban stays.  Appeal denied.