Serial cod problem.

Download and install Origin - Origin. If you registered your games/packs there should be an icon for that item in my games. Click the small i on the icon and read the code.

Do you have the download or disc verision of the game ?

I have a boxed version of the game.

Origin already installed on my computer Smis shall have a base game with the addition of the Four Seasons. In my'' library'' games is strictly optional but games are not ;c pls help

Does the game show in your library ? Did you make an account and register the game on it when you first got it ? Did you login with the same user info ?

The game don't show in my library and this is an account when i have Sims

You need to contact a Customer Support game advisor for this then

Game advisors can be found through live chat.

1. https://help.ea.com/en/contact-us/ 
2. Set your language to US at the bottom
3. Click on Contact a game advisor 
4. Describe your issue with a few words
5. Click on Find a Solution
6. Select Product: ex: The Sims 3 or Origin
7. Select Issue Type: ex: Billing/Purchasing or Account Management
8. Select Platform: PC
9. Click Find solution
10. Scroll down and click I still need help
11. Click Chat Now to chat with a Game Advisor
    

With Pics here: http://sims3.crinrict.com/en/2012/10/how-to-contact-ea.html