DLC won’t work, any idea why.

Yesterday I bought the old hunters DLC, but when I entered the game, the eye of a blood drink hunter won’t appear, I’ve killed Amelia and touched the skull, but nothing appears, any idea.

When checking my game library, it says the DLC is already installed after the point I bought it. I’ve deleted and reinstalled the game 3 times, looked everywhere for other people who had this problem and solved it, set my ps4 to my primary ps4 and restored licenses. I also checked the location of my disc (UK) with the location of my account (also UK), which does seem to be the main problem I’ve seen other people encounter.

If I missed something, please give my any ideas that could help me. I hope I haven’t just been scammed (I know it sounds stupid but I’ve been working on this all day, and I’ve gotten extremely paranoid).