Username change

Hello there,
My username was changed before from Blizzard1 to Blizzard, after the last backup, and before the data loss incident. (I provided the wrong e-mail address at registration, ending in “.com” instead of “.es”, so after creating the user Blizzard, I had to create another one - Blizzard1, because I could not get the confirmation e-mail)

Can you change it again, please?