Try going to DV's location in the store and see if you can download it there. Also, try redeeming it at the Sims website, not Origin. Once you've done that (and regardless of the message you get) check your purchase history to see if it is not there.
If none of those help, contact EA here: https://help.ea.com/contact-us/ask. For help with navigating the site, see this: http://sims3.crinrict.com/en/2012/10/how-to-contact-ea.html
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I will most likely not see your response. If no one responds to you within a few days, contact EA here: https://help.ea.com/contact-us/ask . For help with their website see this: http://sims3.crinrict.com/en/2012/10/how-to-contact-ea.html. It will probably be best. If I did help you and solved your problem, please accept the solution (XP is also nice). I hope it all works out for you - happy Simming!
I am also facing the same problem. Redeemed the code on the sims3 website and then the message prompted that I owned the DV world. It asked me whether to download now or download later and I selected download later. Now the game is showing registered in My World under My Page but not showing for download in Purchase History, so I am now unable to download it. Please help me to download it.
Which purchase history are you checking ? Thesims3.com or Origin ? It should be on thesims3.com
