How To Register Sims 3 Bought Online How Can I Solve This Sims 3 Problem?

How can I solve this Sims 3 problem? - how to register sims 3 bought online

I bought and installed the Sims 3, but I can not play because it says that my activation code is invalid. Why this happened, when in reality I just installed with the same code?

And if it is required to be registered online, unlike the Sims 1 a.m.-2 p.m., where online registration is only an option? Do I need a devil or something, as in Sims 2?

Thank you very much.