Can I login to Clash of Clans through Facebook?
In clash of clans your cloud data won't be saved in Facebook account. It connect with Google play games in Android and Game Center on iOS. You can log in and log out easily in Android as a simple tap can change the village where as you can't on iOS.
How do I get my Clash of Clans back from Facebook?
If you did have your game linked to Game Center / Google+, then simply log in to your old account and open up Clash of Clans. It should prompt you to restore your old village. Simply say yes!
How do I log into my old Clash of Clans account?
Open the Clash of Clans application. Go to In Game Settings. Make sure you are connected to your Google+ account, so your old village will get linked to it. Press Help and Support.
Why can't I connect my Facebook to Clash of Clans?
Go to the Settings menu on your device, in the Accounts tab, remove your Facebook account. Sill in the Settings menu, go to Application Manager -> Facebook -> Clear Data. Sill in the Application Manager menu, go to Clash Royale then choose Clear Data. Make sure that you have saved your account!