I was wondering if there was ever a solution found for this problem. I have searched online and found others having the same issue. I had not played Destiny for a while leading up to this point, but still claimed the Twitch Prime rewards. I heard that the issue is that the items that are currently held by Amanda Holliday exceeds the number that Bungie has set as a limit, but I was hoping for a way to solve this so I can claim the rewards and prevent this from happening in the future again. I tried submitting a ticket and was advised to make a post on the forums as they were not equipped to help.