Overwatch support

Hi does anyone know where can i send notice of dispute to overwatch? blizzard banned my account where i spend exatcly 2,8k euro on games (mainly on overwatch buying all collabs premium battle pass every season etc) account got permanently banned beacuse of messages like “you are so annoying” “tank swap” “you are like a shield bot” those messages lead to my account being banned, since i spend on this account such amount of money and had there plenty of rare overwatch 1 skins i want to take a legal actions, trying to communicate through support wont work since its automatic and when i send any kind of ticket it will be marked as resolved i want to sue blizzard by stolen assets beacuse i have not violate code of conduct or any rules such as hate speech or toxic behavior i have all tickets along side with chat logs and i never was even slightly rude on support yet blizzard threating me to close my account completely if i send one more ticket, does anyone know how can i contact them in EU? is there some mail for legal cases like this?