Same thing happened to me dude. I was just playing 2 days ago and hardly spoke to anyone and I was never once disrespectful and never had an argument and then suddenly i was banned for use of racial slurs… I have never once even cursed or said anything racial… I got a 72 hr(3 days) ban, and i submitted a ticket as it happened… But from the looks of things based on how up to their neck support is, i doubt i would get help… My account supposedly reopens tomorrow afternoon..
I guess you just gotta wait out your suspension time, assuming you was not perma-banned.