The system of in-game purchases is built in such a way that a charge of funds without notifying the player is not possible.

It's very important to set a strong password and not to let other people access your game account.

If an unauthorized money deduction happened, though, we recommend you to contact your app store (Apple or Google, depending on the device you are using) for a refund.

Please, note that only app stores have access to your payment method.