If you sign up to an email address, you must register your mobile phone number through a separate procedure. If the mobile phone number is not linked, legal currency transactions are not possible, and it is also difficult to prevent hacking damages such as unauthorized withdrawals.
After you log in, click Login ID in the upper right corner of the homepage to see a menu related to account settings. You can register your mobile phone number here by selecting 【Account Information】 or by selecting 【Security Settings】.
Please open the email you are using in advance, as all authentication must be processed within 60 seconds when linking mobile phone numbers. And if you have not registered within 60 seconds, please re-enter 【Get Code】.