if i understand right the base game and uni are on a different account but are wanting to add the other games to the original games ? they need to be with the same account you wil have to contact CS they might be able to hel p you merge the accounts
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
