Apple Account locked - don't know why and can't get help

I use my Apple Account only for iTunes for Windows purchases. I don't have an Apple device or use any other Apple services. My last iTunes purchase was in May 2024. I tried to login to iTunes recently and my account is locked.

I tried to use this. iforgot.apple.com/unlock The message is as follows.

This account is locked.

This account is locked and can't be used.

I asked Apple for help. The reply is as follows.

Your Apple Account Request

Dear (name removed),

We’ve reviewed your request, and access to your account (email removed) has been denied.

Apple

I called support and was told many possible reasons my account is locked, that nothing could be done, and my only option would be to create a new account. I can't access any of my prior purchases, only what I have saved locally.

I don't know what happened to my account and want it back. Without my account I couldn't even ask for online support or create a post here.