Did you know you have to manually register card packs??

I'm one of those people who just found out and is now rushing to register them to get the benefits... It's about those card packs in many mobile games where you get in-game currency as a reward for collecting all the cards. I got one in my inventory, so I just pressed 'use' without thinking much, then forgot about it because I couldn't find it on the main screen... 1. Use the card pack from your inventory. 2. Go to your camp and tap the Card Collection Book, which appears as a button on the right. 3. Unlock and register each card marked as 'unlockable'. 4. Receive the reward for the card pack once you've collected all 9 cards! ...I'm rich in currency now lol But usually, things are set to update automatically, this game is so pickyㅠㅠ I guess I skipped the tutorial, now I know.