Originally, I had nothing from the RotR bundle, no characters, adventure packs, etc. They all still had "buy" available for -1 gold. After restarting the app a few times later in the day, those items are mostly there.

 

However, after playing awhile, I noticed that I wasn't encountering any C cards. 

 

Going to the store, I see that the Character Add-On Deck is still available to buy for 10,000 gold. I double-checked description of the Bundle, and it does in fact list it there. I go to the gallery and C deck is unavailable, and tells me I need to purchase the character add-on deck.

 

After some design decisions, I was very leery of purchasing anything with real money, but I went for it anyway, SPECIFICALLY because it had the C deck, and it'd be a better deal all around because of that. Bugs I understand, but not getting what I paid for is really putting me off. I really hope this isn't something that requires an update that has to get approved by Apple, etc, either. 

We sorta got caught off guard here with the early launch, so please bear with us as we work to make this right.

Same on Android. I was writing the post and see that developers have responded, so hopefully we'll see Deck C soon. ^_^

I have the same issue.  After purchasing the Season Pass, I've received everything except the non-character cards from the C deck.  I can add the four C characters to a party (without being prompted to purchase them), but the Gallery shows I don't own any of the C cards and instead provides a link to the Store.  The C deck in the Store, instead of being listed as "Owned," has a purchase price of 10,000 gold.