If your device has the Facebook app installed, please take the following steps :
- Open the game and log-out from the Facebook account
- Open Facebook App
- Log-out of current Facebook account
- Log-in to the new Facebook account
- Open the game and log-in via Facebook

If your device does not have the Facebook app installed, please take the following steps :
- Open the game and log-out from the Facebook account
- Choose the "Facebook Login" option and enter your login information
- Open your web browser when the "Login Confirmation" pop-up appears
- Log-in to your Facebook account on the web browser
- Open the game and log-in via Facebook