Transferring Games to Another Account

That's not possible. All you can do is have EA merge the accounts but I doubt that's what you want to do.

You can try if customer suport is willing to do anything for you (like give you a new code or something along these lines) but I doubt it

Game advisors can be found through live chat.

1. https://help.ea.com/en/contact-us/ 
2. Click on the orange NEXT button
3. Select a platform
4. Click on the orange NEXT button
5. Select a topic and describe your problem in a few words
6. Click on the orange NEXT button
7. Click Chat Now to chat with a Game Advisor
   

In Details here: How to contact a Game Advisor using the new EA Help page