If you don't like a movie, you ask for a full refund from the cinema? If you don't like a book, you ask for a full refund from the store while keeping the book? If a food is not to your taste (otherwise it's perfectly good), you ask for a full refund after you have eaten it? I'd say return the dlc, bungie checks how many percent of content you played through and gets you a refund based on that. But don' you ever touch the dlc again. Edit: -blam!-, zombie thread