Hi,

This issue appears to be generated by Google’s Play Store App. However, clearing your Google Play Store cache may bring things back to normal. To do this, follow these steps:

Open your device's Settings
Open the application manager
Select 'Google Play Store'
Tap 'Clear Data' and 'Clear cache'

Now launch Google’s Play Store app, choose the appropriate settings and then try making your purchase again. If you’re still experiencing difficulties, please visit their help center for further information regarding Google Play and Android device purchases. There's also a ‘Contact us' link for reaching Google Play Store support staff. <