I've had the same issue with Dragon Age Collector's Edition. My Collector's Edition Items are showing as being enable on my account but they don't show up in the game anywhere and talking to EA customer service is a joke. I'll give this solution a shot. Thanks for the info.
I recently went round the whole 'DLC doesnt work' scenario again recently... What I found was I had 2 accounts, 1 had the main game and Stone Prisoner and the other had ALL the rest, I probably created the second account around the same time as the first, possibly drunk and quite probably very cross with how long it took to create accounts when the game first launched. I clicked for help with an agent and got onto a very helpful Indian person, we quickly ascertained that migrating the second account to the first would be complicated and migrated the first to the second, I can now play the game, with ALL the DLC
