|UPDATE: I solved this, you are supposed to go to PSN > downloads > AC4 and install manually each of your packs. Then restart the game and it works.
I have purchased the following from the PSN Store:
- Time saver collectibles pack
- Time saver activities pack
- Time saver technology pack
The problem is they do not activate in game. I still need the plans for elite upgrades, I still don't see all collectibles and locations in game. If I browse the packs in menu they show as purchased.
I have also bought the resource pack a few times and it always activated the next time I entered the story.
Does anyone have a solution to this?