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
We are pleased to introduce our official Market, which you can access via this link: https://market.my.games/games/144
For more information about the shop, including detailed instructions, please refer to the special article on the game support page.