Bought / registered digital game on Origin - Serial Codes Not Working on Sims Website!

My games automatically regstered through Origin and I got my downloads. I still have the My Page glitch that doesn't show my icons but that is irrelevent. My issue is that although they are registered etc I still get prompts in my sims launcher that says register your game. At the bottom of my log in on the game menu it says register your game. When I go in to the in game store it says register your game. Technically I am registered but my game is not recognizing as registered.