Some of what you say is confusing.
You say they created the account, which presumably means you did not. If they could do that, how do you know all those details if you cannot get into the account?
Your underlying issue is the person seems to have access to the email account. You need to regain access to that. You should then contact Apple ans see if they can suggest something. You are basically in the position that a hacker would be in if you had access to somebody's email account but not their Apple Account and are now trying to get into their Apple account to do damage.
Read this document if you think your Apple ID has been compromised. --> If you think your Apple Account has been compromised - Apple Support
For iOS 15 or earlier, if you want to see if anyone else has access to your device or accounts, click here --> Checklist 1: Limit device and account access - Apple Support
For iOS 16 or later see how Safety Check on iPhone works to keep you safe. Safety Check for an iPhone with iOS 16 or later - Apple Support
Use the information in this document to check your Apple ID device list to find where you're signed in --> Check your Apple Account device list to find where you’re signed in - Apple Support
Related materials:
Personal Safety User Guide
Personal Safety User Guide - Apple Support
> open the Table of Contents and review the articles
A document with general information about security and your Apple ID --> Security and your Apple Account - Apple Support
Contact Apple for help with Apple ID account security. This page provides country-specific Apple Support contact information ➞ Contact Apple for support and service - Apple Support