Well, the sims 3 store is not working for me i entered my product code and everything and its still not working.
You have to go to your profile and press the cash in Sim points button.
I was really confused too and kind of mad, but then I saw that. Haha.
(If you tried doing that, then I'm not sure what's going on.)
They should also put the free stuff in the store under the free stuff section... Would that not make more sense?
I also think they should have more pictures of how the hairs look because I bought a couple and was VERY dissapointed. It's funny how people like Peggy and other modders can care more about making nice hair and clothes than the Sims 3 team.