Everyone has ONE chance to change their tags. No matter the reason you will not be given another. If Bungie steps in it will be because the tag is offensive in nature and then they will moderate it to the generic "Guardian" tag.... or ban the account in extreme cases. Also account security is our responsibility not Bungie's. This is due to the number of people who allow account recoveries... and for some reason all the hackers who only target Destiny2 players and their save data leaving the rest of the account alone.