Have you checked if the download is available in the Origin client to download already ?
If it's not there, log out and back in and restart Origin
If it still doesn't show up, contact Customer Support
They can be found here: https://help.ea.com/contact-us
Choose a category, a game and a platform for the option so 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