Microsoft 365의 기능은 사용자가 구독, 계정 설정, 청구 정보를 관리할 수 있도록 돕습니다.
Sorry to hear you're having trouble.
Unfortunately, I'm afraid that no one here would be able to help with this issue as this is an open forum. My recommendation here would be to check your email including the junk/spam folder for a reply regarding the request. Once you find it you can reply to that email and it will go straight to the team handling your request.
If you do not see the email listed there you can try starting an online chat with support via https://support.microsoft.com and click on Contact Us then follow the instructions until you reach a person.