Long story short, I want to buy the Complete edition with all the expansion for pc, my big concern is I already own arr hw sb expansion pc version and am Afraid that if I purchase the Complete edition for pc it won't let me register the code in my account because I already own the first 3 expansion? Also not a fan of the idea of buying Sb and EW separately just to play this game on pc because they cost 39 bucks each and the Complete edition is just over 50 bucks, Gas prices is already soaring!, please I need help and enlighten my worries thanks!