There is no feature to merge accounts into one. However, if you are not currently subscribed to Class+, you can transfer course tickets and payment history between accounts under your name. If you'd like to do this, please contact our online customer support. Note that Class+ subscriptions cannot be transferred between accounts, so please carefully choose which account you'll use before starting a subscription.

Kakao and Naver linked accounts can be directly switched to email login. In the Account Management menu, click the Set Up button below your email address to set a password — after that, you can use both SNS login and email login. However, Apple and Google linked accounts cannot switch login methods or change their email address; you must continue using the original SNS login. Additionally, switching directly from one SNS to another (e.g., from Kakao to Naver) is not possible — the only option is to unlink your account and then switch to an email login account with the same email address.

Account deletion is processed 15 days after the request is submitted, and once complete, you can re-register with the same account. However, accounts linked to Kakao, Naver, or Line cannot re-register with the same account even after the deletion has been fully processed.