Unfortunately at this time we are only able to change our Bungie Names a limited number of times, regardless of if it was intentional, a typo, act of siblings, pets, regerts, or other errors… one shot is all we have. Please see https://help.bungie.net/hc/en-us/articles/7648312251284-Bungie-Name-Guide for more information. At during a recent Developer Live Stream, Bungie has allowed a 2nd name change. If you have used this 2nd name change, then at this time there is nothing that can be done to allow a custom name change or correction