You need the code that appears in the screen when you click the button of "delete account" then you put your password and code and delete it.

Hello "pet2510"

I believe that to delete your account you can proceed like this
1) you go to your profile sheet
2) click on “Edit profile”
3) in the right column, at the bottom you will read "delete your account".
4) you click and you will have this.

https://app.screencast.com/K4dUEheaDVt8B

Simply reproduce the code correctly and then confirm.

Just dont use your nick, youll regret it when you wanna come back that you deleted it because getting 6 dices wont be easy when you get older and lack time playing games.