@Wayne_The_Gooner Hi,
I have moved your thread to the C&C forums. Gorath's suspicion is correct, you will need to contact an EA Game Advisor if you do not have access to your original account anymore that was used back then the register the game: https://help.ea.com/en/contact-us/ask
This article here describes how: https://help.ea.com/article/welcome-to-the-new-and-improved-ea-help-center#2
Log in with your Origin account and choose a "Product", "Category" and "Platform" to see all available contact options.
If there is no phone support or live chat available at the time, please scroll down below the Answer HQ box to check our live support availability for your region.
Thank you,
Nils
Cheers,
Nils