Tried to redeem sims 3 seasons on orgin but my code is already in use??!!

FAQ http://answers.ea.com/t5/The-Sims-3/FAQ-Invalid-and-Used-Serial-Codes-amp-Games-not-showing-up-in/m-...

if in the event you do need to contact CS here's how 

They can be found here: https://help.ea.com/contact-us Choose a category, a game and a platform for the contact options to show up. If live chat is gray, change your country to US and make sure you're on US Business hours. It might also gray because they're very busy. Try later. See this post if you have trouble with the site: http://sims3.crinrict.com/en/2012/10/how-to-contact-ea.html