Brawl Stars Wrongfully Banned My Account After Normal Club Chatting

I am extremely frustrated and disappointed with Brawl Stars. I was simply chatting normally with my friend in our club. A few hours later, when I tried to log in to the game, I saw that my account had been permanently banned without any proper explanation.

I have invested a lot of money and effort into that account, and it is absolutely unfair for it to be taken away so easily over something so trivial. I did not engage in any inappropriate behavior or violate any rules. How can normal club conversations lead to a permanent ban?

I demand that my account be reviewed again properly and that my ban be lifted. Supercell, you need to take responsibility for wrongful actions like this. Please fix this mistake immediately and restore my account.