Purchases are carried out using your saved payment information, held in your Google Play Store account.
If you'd like to avoid any accidental purchases being made on your Android device, simply open the Google Play Store app and follow these steps:
Automatic In-App Purchases are now disabled and a password will be required to make any purchases.
Please note: the instructions above may vary according to the device you are using, you can always double check your device user manual for further information.
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