Update:
Well I decided to fight a bit with them, I wrote second petition to Blizzard saying that there must be some kind of mistake. That I am really frustrated because I never used any software except legal addons. And asked them if its possible to look more closely at my case and remove the ban because I am absolutely unguilty.
They answered that they are positively sure that I was using a bot, won't unban me and any other petitions from my side will be ignored. Any additional information won't be provided for security reasons.
Lucky assi didnt get banned hahahah