02-16. If the Code Does Not Arrive or Authentication Fails.

If you cannot find your verification code, please check the following items in order:

Check Item	Solution
In case the registered phone number is a landline	If your registered phone number is a landline or any other number that cannot receive SMS, please follow the steps below to switch to "Email Authentication." 【Login & Authentication Steps】 1. Go to the Travel CUBE login page and log in with your ID and password. 2. Once the verification screen appears, click the "Send" button. 3. On the next screen, wait for 15 seconds. Once the "Use Mail Address to Verify" text link becomes active, click on it. 4. A verification code will be sent to your registered email address. Enter the code to complete the login process. *If you wish to use SMS authentication in the future, please log in and change your registered phone number to a mobile phone number via your My Page.
Connection Status	Ensure you are not in an area with weak signal or in Airplane Mode.
Spam Settings	For email, check your spam/junk folder and ensure that the domain @tabicube.com is not blocked.
Expiration	Codes are valid for 5 minutes. If the time has expired, click the "Resend" button.
Changed Info	If you cannot use your old device/address due to a model change, identity verification is required. Please contact our support desk below.
Phone Number	Ensure your phone number starts with a "0". If the leading zero is missing, please re-enter it.

If your email address or phone number is unregistered or unknown, you will not be able to complete the authentication. In this case, please create a new account.

■ If the Issue Persists

Please contact us using the inquiry form.

For inquiries other than two-factor authentication, please refer to "01-10．If the FAQ doesn't resolve my problem, what are my options？". (Please note that it may take some time to receive a response.)