A phone number, email address, or Facebook account cannot be registered to more than one LINE account at the same time. When you register the same information to a new account, it is removed from the account it was previously used with.
A LINE account needs to be registered with a phone number or Facebook account at all times. If an account is no longer linked with either of these after information has been removed, it will become inaccessible.
Note: When an account becomes inaccessible, its friends, chats, and other data is deleted and cannot be recovered.
Take care not to use the same information registered to an account you're currently using if you make an account on another device. If you want to create multiple LINE accounts, you need to register them with different information and use them on separate devices.
Note: Only one LINE account is meant to be used per device.
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