If you lost your account, please follow the instructions below.
 
[Recovering Linked Accounts]
 1. Delete and reinstall the game.
 2. Select [Sign in] from the loading screen.
 3. Select the linked account and sign in.
 
[Recovering Guest Accounts]
Gameplay data with guest accounts get stored in the device, so we may not be able to assist you.
Please submit a ticket to the customer support team.