Unless you can log into the Xbox account, you will never be able to remove it. For security reasons, Bungie will never remove a platform account. Only you can remove it. If you have lost access to a platform account, then you should contact the platform for help regaining access to it. If the platform is unable to help you recover that account, then you're stuck with it forever. Bungie cannot help you with this. [quote]Destiny Player Support and Bungie cannot modify or remove accounts linked to Bungie.net profiles. To protect player privacy and data, you must be able to log in to any linked accounts to prove ownership prior to modifying your linked account. If you no longer have access to a linked account, you will need to reach out to the specific platform’s support for assistance with account recovery options. https://help.bungie.net/hc/en-us/articles/360049498031-Destiny-2-Cross-Save-Guide[/quote]