@MrsFlynn Since I put the wrong year in when I made my account (2007) it thinks I'm under age and I'm not allowed to log onto the website, and Help is just telling me what I just told you. It means that I can't have a store account or purchase games through origin AND install the launcher, the thing I CAN actually log into.
Also, I found sims 3 base game and sims 3 ITF discs, but I still need to purchase Generations and world adventures, which I'll do as the bundle, so with my card technically the problem is 3/4 solved.