Unlink Xbox account via Microsoft account management page

@leotenr For linking issues like this, you can speak to an advisor and they can take a look at the account with you and provide you with the options. We know issues like this happen and it is something that can be taken care of in most cases.

You can contact our live support at help.ea.com. 

• To request a callback or speak with a chat adviser:
• Click on your product Origin
• Then select PC
• Manage my Account
• Can't log in or account linking

Finally, you can choose to receive a callback or begin a chat.