Today I am making this little easy tutorial on how to get Battlefield 2 Complete Edition for free to your Origin account, even if you never owned the CD for the game. 10$ value for totally free. And a good one for nostalgia seekers.
Here's the details of what you get: https://www.origin.com/en-ie/store/b...W.html#details

What do you need?
• A random CD key
• Origin account
• Secure security questions

Where do you get a CD key, you ask?
https://www.mpgh.net/forum/showthread.php?t=211815
I used a code from near the bottom, and it worked on first try.

All the codes listed on that thread are 2009-prior CD keys, meaning they don't work on Origin normally, and that's why you need to go trough this tutorial.

What do you need to do?
• Go to https://help.e*****m/en/contact-us/ and login to your Origin account.
• Select "New Conversation" or go to https://help.e*****m/en/contact-us/new/
• In Search all Products field write "Battlefield 2" and click on the BF2 cover with a red 2. Then click "Next".
• Select platform, PC, "Next".
• Select topic "Billing/Purchasing", and write "Retail CD key to Origin" in the bottom field. "Next".
• If you have an option to Live Chat, click on "Chat Now". A new window will pop up, a small one. Maximize it and mind the time they give you.
>>It can be up to 60+ minutes, so do other things while you wait, but be sure to check on it constantly<<
• As you get connected, tell the person this: "I wish to redeem my old retail CD key to my Origin account".
• He/she will ask you for the retail code and an answer for one of your security questions. Answer them.
• Do not spam them with excessive text, just wait until they reply to you with a code.
• They will link you to the following address: https://activate.e*****m/activategame.do - Go there, enter your new product code, and login with your Origin account details.
• You are given a task to create a Battlefield 2 Soldier Name, enter whichever you like and proceed.
• Now relog on Origin and discover your new BF2 Complete Edition package on your "My Games" tab!

The whole process for me took roughly 50 minutes.

Have fun.