Basically, I have purchased music from iTunes, but when I go to some song's albums (in iTunes), they don't show as purchased. Even when I go to "purchased" it shows they've been purchased. Normally they just display "PLAY" or "PURCHASED," and it knocks the price of the album down, but instead it asks me to pay for them again. Is there a reason for this? Has anyone else had this problem? I'm still able to play the song fine, it's in my music, but I normally get offered a discount on the entire album's price if I've bought songs from it.