To better protect your account, we recommend that you link your game account to Game Center/Google Play.

To do so, first you need to quit the game, then sign in to Game Center/Google Play.

For iOS, open Game Center and sign in with your Apple ID.

For Android, go to Settings—>Accounts—>Add account—>Sign in with your Google Play account.

After that, log in to the game, and your game account will be linked with Game Center/Google Play account automatically.

Should you have any questions, please contact Customer Support.