Interactive Deck came with Easy cards?
The Agricola cards are not wrapped in the box strictly by which deck they belong to. You'll need to open and sort through all the cards that came with the game. The terms "E-deck", "I-deck", and "K-deck" just refer to subsets of those cards. The E-deck is all of the cards with the E symbol, and so on. 

Should you need a manifest of all the cards, this website contains a complete list of them. Only the E-, I-, and K-decks are part of the base game; the rest are expansions or promos.