I tried to purchase tashas couldron which seems to have worked but after that the button turned staigt back to the normal one as if I didn't buy it at all

But when I try to buy it I get a pop up telling me I already purchased it but doesn't let me download or view it

PS it also shows up on Google paying history

Never buy from the app, always buy directly from the website. You’re gonna hafta wait for the purchase to clear the App Store, then wait for it to clear DDB’s system.