First of all, you're in lemmy.ml's support page, where there is no user with said nickname registered in. Even if this ban goes through, it will at most be applied to communities hosted by this instance; and won't affect the instance you're from, lemmy.world
You also haven't provided any reason to ban this individual, I do not even know what it refers to.
No joke, it'd be hilarious if somehow the bird was named to Türkiye.