Clicking the steam page link for both redirects you to the main Steam page. Using an online URL tracer showed that one of them should redirect here and the other one should redirect here.
I replaced store.steampowered.com with steamdb.info so that it doesn't redirect to the main Steam store page. Both link to the game but the first one is a bundle that's no longer available on Steam (according to steamdb) and the other is a package that's delisted from Steam.
Edit: I just noticed that there is only one official store here. They're probably selling the bundle not the package. That's why there is 2 different pages. Because of this one store lol. There maybe some sort of mistake though.
