In-App-Purchase through an Application Store (Google Play, App Store)
Payment methods of in-app purchases depend on the platform you play the game on. Unfortunately, we are unable to change payment methods.
You can always learn about additional payment methods by contacting the support service of the specific application store.

MY.GAMES Market
For more information about the shop, including detailed instructions, please refer to the special article on the game support page.
Regarding the payment methods, all currently available payment systems are already presented in the payment window. We are constantly working on expanding the variety of available payment methods.
Please note that payment methods and currency are determined automatically based on your region. Unfortunately, you cannot change them manually.