Open the game's Settings and choose "Delete account and data" at the bottom. If you already removed the app, email us. For Joseon Exorcist, see account deletion.
Close the app completely and open it again: unconfirmed purchases are checked again and granted. If that does not help, email us your order number (store receipt) and member ID.
Payments are handled by Google Play and the App Store; ask for a refund there. Items from a refunded purchase may be taken back.
In Joseon Exorcist, link your Google (Android) or Apple (iOS) account in Settings and load your progress on the new device. Other games follow their own in-game guidance.
On every summon screen (Odds button), and for Joseon Exorcist on the odds page.
support@leoncorpcore.com