Bayni1717 The Store is down sometimes, usually not for all that long. Codes might expire eventually, but not in the time it takes for the Store to start working again. And the site worked for me just now, although it wasn't completely working a few hours ago.
Having said that, your codes may not work because you tried to use the codes in the EA App, or if you bought the bundle in the App, it's possible the codes never would have worked. If you can't redeem them now, please see the first post of this thread:
[Current Issue] Sims 3 Store world can't register/install | EA Forums - 11143823