The documents required will differ depending on whether the visitor is other than a legal guardian or an adult guardian.
Please see below for the documents required for the procedure.
Documents required for device upgrade
Documents required for cancellation
Documents required for changing contract information
(Change of name or surname, address, contact phone number, current plan, optional services and discounts, change of user information)
Documents required for new contract or MNP
(Only if the contract holder is eligible for Smile Heart discount)
In the case of credit card withdrawal: Credit card (including debit card)
In the case of direct debit from bank account: Cash card or bank passbook + seal registered with the financial institution.
Documents required for device upgrade
Documents required for cancellation
Documents required for changing contract information
(Change of name or surname, address, contact phone number, current plan, optional services and discounts, change of user information)
Documents required for new contract or MNP
In the case of credit card withdrawal: Credit card (including debit card)
In the case of direct debit from bank account: Cash card or bank passbook + seal registered with the financial institution.
In case the guardian/parent who has already notified our company: The identity verification document of the guardian with parental authority
In case the guardian/parent who has not notified our company: A document that prove the parent-child relationship (health insurance card, etc.)
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