Board Game Arena

is there a way to modify one single letter in username?
if i try through preference it say the user is already taken but it is himself)

I’m guessing it will work if you first change your name to something differently, then change it back with the uppercase letter.

You cant change more than once...

The user names are indeed case-insensitive (I was blocked from taking KongKing, even though the player called KONGKING had been inactive for a long time).

You could try contacting BGA directly: https://boardgamearena.com/support

ty