Firstly, if you buy the apparel cache key packages off of the UBISoft Club rewards they will say when opened you get the same item (for my friend and I it claimed we got a backpack)... in reality you will get cosmetic/apparel items so you need to head to that inventory tab and look for the yellow exclamation (!) marks to see what you got.
Secondly, my friend and I both reached level 10 and was awarded a blue apparel cache yesterday... my friend supposedly got an emote, and I was told I got some swanky new boots. These items NEVER showed up in either inventory, even after playing the game for hours. So for now I would hold off on opening these caches.
I got another apparel reward (I forgot from where) that took 10 minutes to show up in my inventory too, so clearly there's something buggy with relation to the store/game/servers agreeing on what you have unlocked.
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