I have had Destiny since day 1 and had the expansions (i got the collectors edition), and as the taken king comes out tomorrow I was trying to buy the £39.99 edition from the Playstation store, but when i try do this it says Not Available For Purchase, but it lets me pre-order the next one up which is the legendary edition for £54.99... which I dont really need, why cant I buy the £39.99 one?