Hi there. Only players can link and unlink their own accounts by authenticating their logins. That is a security requirement and Bungie will not link or unlink on behalf of players under any circumstances. If you have trouble authenticating when attempting to link or unlink, make sure you are entering the correct login. Contact Twitch Support if you need login assistance. If your account was deleted and Twitch can't or refuses to restore it, deleted accounts cannot be linked or unlinked. Info on account linking can be [url=https://safety.bungie.net/hc/en-us/articles/42350783827476-Bungie-net-Profile-Account-Creation-and-Linking-Guide]found here[/url].