Re: Sims 3 Barnacle Bay (HELP!)

@5150SpitFire  You can try clearing your browser cache, or using a different browser.  But if Barnacle Bay is in fact not listed in your purchase history, there's nothing you or anyone here can do to fix it.  The only solution would be for an EA customer support rep to remove the world and put it back on your account.

The issue may be that Barnacle Bay is treated differently than other worlds.  Some time ago, it was offered for free to many players, although perhaps not all of them.  I never bought it, but I see the same thing as you do: I can download it from its product page, but it's not in my purchase history.  So perhaps the way that BB is handled by the store means it doesn't show up in anyone's purchase history anymore.

If you're worried about losing access to it later, you can save the downloaded Sims3Pack file elsewhere on your computer for later reinstall.  Go into Documents\Electronic Arts\The Sims 3\Downloads, find "BarnacleBayDDSet.Sims3Pack, and copy or drag it elsewhere on your computer.  (If it's called something else, that would be interesting—that's what my download from a year ago looks like.)  You'll be able to put it back in that same Downloads folder later and reinstall it whenever you want.