This seems to be an issue for some people.
If the world is in your purchase history and you can play it, you own it and it's just a matter of the icons not working properly.
To get those working, I would suggest to post in SimGuruRusskii's thread in the official forum in the tech section. It's stickied there. She tries to escalate the case where the iconds don't show.
You could also try contacting customer support and see if they can do anything about it.
The AnswerHQ is about Users helping Users.
They can be found here: https://help.ea.com/contact-us/ask
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
