Click on this link "If you think your Apple ID has been compromised" --> https://support.apple.com/HT204145
'Checklist: If you want to see if anyone else has access to your device or accounts' click here --> https://support.apple.com/HT212021
Security and your Apple ID - https://support.apple.com/HT201303
Contact Apple for help with Apple ID account security - https://support.apple.com/HT204169 "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues." Better for directly reporting an issue.
Remember that this is a user to user support forum. You are not talking to Apple here. If you need them to do something you have to contact Apple, preferably using any specific links they have given you for doing this.
For information about 'How to use account recovery when you can’t reset your Apple ID password', click here --> https://support.apple.com/HT204921
- "If you use two-factor authentication and can’t sign in or reset your password, you can regain access after an account recovery waiting period."
- Check the status of your request
At any time, you can see how long it will be until your account is ready for recovery, or when more information will be available. Just go to https://iforgot.apple.com and enter your Apple ID.