EP will be listed in two different locations. If you check out your inventory you can see any unclaimed EP packages you may have purchased or been gifted.
The other spot is Claimed EP which you can see on the store page under your name in the top right section. If you purchased EP and it wasn't in the form of a gift, or if you already claimed some of your EP packages, this is where you would see that balance.
Any claimed EP will not show up as a pack in your inventory anymore.