New game won't download

Did you check this purchase history for Roaring Heights: https://store.thesims3.com/purchaseHistory.html ?

I don't know about the other game. I would think that should show up in Origin. You need to contact a game advisor for that

Game advisors can be found through live chat.

1. https://help.ea.com/en/contact-us/ 
2. Click on the orange NEXT button
3. Select a platform
4. Click on the orange NEXT button
5. Select a topic and describe your problem in a few words
6. Click on the orange NEXT button
7. Click Chat Now to chat with a Game Advisor
   

In Details here: How to contact a Game Advisor using the new EA Help page