This has also happened to me, I bought the deluxe preorder in October and the payment went through because I have been playing the dungeon and other pack content since it dropped. I got on today though and it says I don't have it and looking at the order history says my preorder failed even though I've been playing the 30th anniversary pack for 2 months. So I'm confused I sincerely hope Bungie fix it because I don't want to pay for the expansion again.