I've activated the login restriction by country, but additional verifications are not displayed.
Even if the 'Login Restriction by Country' service is activated, additional verification is not required to log in from countries
that are not registered as login permitted countries if you have already verified using a similar two-factor or two-channel verification method.
This is to eliminate inconveniences during service use due to repeated verifications.

Please contact the Customer Center if additional verifications are not displayed and you have not used a two-factor or two-channel verification method.