Re: [SOLVED] 64-bit Sims 3 content not in Origin library
All entitlements, as they're called, for both the Sims 3 base game and for expansion and stuff packs should now be distributed, and all players should be able to download the 64-bit version of all their owned content.
If you own the base game or a pack but cannot download the 64-bit version, please contact EA customer support:
Specifically say that you play on a Mac and that you would like the entitlements for the 64-bit versions of your missing content added to your account. If the first support rep doesn't understand, says they can't help, or claims this is not an issue, feel free to ask that this be escalated.