Banned account...why??

I got banned and I don't know why....I don't even know if it's someone reported me or if it's Apex anti-cheat or some automatic tool (I have no idea how it works).

Of course I don't even know how to install or use cheats (my K/DR is 0.81!!!!) and I always play with random players and I usually mute them.

Reading online I've seen there's probably no solution, except waiting the TOS answer that I suppose will never arrive...anyway, I followed the instructions at https://help.ea.com/en-us/help/account/information-about-banned-or-suspended-accounts/ and after that I got an email where EA kindly informs me that:

"We noticed that your EA account broke EA’s gameplay rules. Because your account was cheating, we’ve permanently blocked your access to Apex Legends’ online features."

That's it...no other informations...All I know is I didn't cheat. 

funny thing...after subscribing to this forum I keep getting funny and happy emails from Answers HQ where they congratulate with me for the new badges I earned...thanks so much, that helps a lot.

thanks in advance for the informations, bye