I'm sure some of you have received an email from Origin regarding The Sims 2 Ultimate Collection which is a new version of the game packaged with all released expansion packs and stuff packs from The Sims 2. To get this on your Origin account, this is what you do:
- Contact EA Support and go for their live chat. Here's a shortcut for you.
- Ask about adding The Sims 2 to your Origin account. They'll ask for your CD Key. Note that you only need the key for the base game.
- Go through whatever security checks they request or whatever.
- Check your library for The Sims 2 Ultimate Collection and it should be there.
If you never bought any of the EPs or SPs for TS2, now's your chance to get them for free as you only need to give Origin your base game key. And that's all there is to it.
Note that this will be tied to your Origin account and will require Origin to function.