Regardless of how or why your characters were deleted, Bungie does not provide a service to restore them. https://help.bungie.net/hc/en-us/articles/360048717732-Deleted-Item-and-Character-Policy [quote]Bungie does not provide the following services: Restoration of deleted characters Recovery of dismantled, scrapped, deleted, or otherwise discarded items Recovery of mistakenly Infused items Recovery of items lost due to a Character's Postmaster being full Recovery of items lost due to Player Inventories being full Restoration of access to items or content gained through game sharing Refunding in-game currencies on accidental purchases Refunding Silver or transferring Silver between platform accounts, Destiny releases, or inactive accounts in any capacity Transferring items or characters between platform accounts or inactive accounts in any capacity[/quote] Additionally, for someone to add an account to your existing profile they would need to know the log in credentials to one of your accounts. I would strongly suggest you change all your account passwords and insure two factor authentication is enabled on each. You can read through more information on how to secure your accounts in Bungie's [url=https://help.bungie.net/hc/articles/360048721292]Account Security Guide[/url].