S3MANTICERR0R If you bought RH through the EA App, or you tried to register it there, that would explain why the code didn't work. I thought from your wording that you got the world but not the points; if that's not true and you don't have RH either, please see the first post of this thread:
[Current Issue] Sims 3 Store world can't register/install | EA Forums - 11143823
With only one code though, the points should have just been added to your account. I'm not sure whether EA support could add them for you. Support reps can in fact replace points spent on an accidental double purchase, but they may be restricted to only that context. It doesn't hurt to ask again though, that is if you have the patience. One thing we know is that this not a bug that would be fixed automatically from the EA side, as in, your points aren't going to magically appear one day.