Phone Number Authentication

Phone Number Authentication is a service that provides a mechanism to securely verify a user's identity on the Internet using a phone number, which is information strongly associated with the user's identity.

In order to prevent unauthorized use by spoofing or multiple accounts, we request that you authenticate using your cell phone number.

The message "This number is already a registered member.

A phone number cannot be registered for more than one account.

If you have already registered for another account, an error message stating "This number is already registered" will appear immediately after you click "Receive verification code.

In this case, please try the following

1. Purchase tickets with the account in which your phone number is registered.

Delete the phone number from the account in which the phone number is registered, and re-register it in the account in which you wish to purchase tickets.

If the error message "This number is already registered" appears even though the phone number you have entered is correct and has not been registered to your account, there are the following possibilities

1. You are registered under your family member's account.

2. The person who was the owner of the phone number before you got it has left it registered with Zaiko.

In case 1, please check with your family member and ask them to cancel the registration.

In case 2, please provide us with the necessary information and our customer support will check the registration status.

Documents that can be used to verify identity

Please prepare a document that can verify your name, date of birth, photo, and the document's issuer, and that is valid and within the expiration date.

For overseas residents (must be written in English), please prepare a document that can verify your name, date of birth, photo, and the issuing source of the document, and that is valid and within the expiration date.
*Please hide unnecessary information.

Examples: driver's license, passport, etc.

Don't have a cell phone/want to register with a landline

If you do not have a landline, a phone number starting with 050, a phone number dedicated to telecommunications, or a cell phone number, you will not be able to authenticate.

Please prepare a cell phone number that can receive SMS and make calls.
*The same applies if you are using a PC or tablet device.