Log in to the Sims 3 community website using your Origin email and password: http://www.thesims3.com
Under the “My Page” menu section at the top of the page, scroll down to “My Account” and select “Redeem a Code” option under the sub-menu
Click on “Redeem a Code
The Sims 3 Starter Pack has everything you need—and far more—to play with life. Make unique Sims with customizable bodies, faces, hairstyles, and personalities. Build and decorate their homes with a huge variety of furniture and patterns, or import your own designs.
This bundle also lets your Sims paint the town red in the included expansion pack and modernize their homes with the bundled stuff pack. If you haven’t jumped into the world of The Sims yet, it’s a perfect time to start and a great bundle to get you started.
The Sims 3: Create the perfect world with full customization at your fingertips. Refine personalities and help fulfill destinies. Go online and share your creations and movies with the ever-growing community.
Late Night Expansion Pack: Your Sims can explore the nightlife with trips to dance clubs, dive bars, and high-class lounges. Give them new careers to match, like mixologist, movie director, or local celebrity. They might even fall in with a pack of vampires!
High-End Loft Stuff Pack: Transform your Sims’ homes into sleek, high-tech lofts with contemporary sofas, ultra-slim TVs, video game systems and eclectic art. Upgrade their wardrobe with tailored suits, dresses, and sophisticated outerwear.