We understand that you want to unlink your Social Media account which is linked with the game. 
 
• Players who have linked their game account to two social network accounts can unlink one of them.
• You can only unlink a social network account that is not currently logged in.
• The channel used for the current login must have been linked for at least 30 days.
• You must have logged into the account on the same device in the same region for at least 15 of the last 30 days.
• After the application to unlink the account has been sent, it will take effect when you log in for the first time after 7 days. Logging in before this time with the account you want to unlink will cancel your application.
 
You can unlink using the unlink option, which can be found here:
 
Lobby >> Settings >> Account & Safety >> Unlinking Accounts.