Facebook account linking and re-linking

My account is missing or not linked correctly.

1. Tap the Settings icon.
2. Tap Link (next to Link Accounts).
3. Tap Logout.
4. On the Select an account screen, select the account that you are using for NBA LIVE Mobile.

I want to link my NBA LIVE Mobile account to Facebook.

1. Tap the Settings (three dots) icon at the top right of your screen. 
2. Tap Link (next to Link Accounts).
3. Tap Link (next to Facebook).
4. Log in to your Facebook account.

I want to unlink my NBA LIVE Mobile account from Facebook.

1. Tap the Settings (three dots) icon at the top right of your screen. 
2. Tap Unlink (next to Link Accounts).
3. Tap Unlink (next to Facebook).
4. Log in to your Facebook account.

I want to delete NBA LIVE Mobile from my Facebook account.

1. Log in to Facebook.
2. Click Settings > Apps.
3. Find the NBA LIVE Mobile icon, hover over it with your mouse, and click the X next to the game. This removes NBA LIVE Mobile from your Facebook.

Source: https://help.ea.com/en-us/help/nba-live/nba-mobile/nba-live-mobile-troubleshooting-tips/