Hi, Villager!
We're sorry for the inconvenience.
Please try closing the app (double press the device's home button and slide up Block Craft's screen; do not delete the app) and reopening it after securing a stable internet connection.
Furthermore...
All in-app purchases are handled directly by Google or Apple, therefore, Fun Games For Free does not have access to any billing/charging information.
More information on declined cards and accepted payment methods can be found here:
Google
https://support.google.com/store/answer/6160259
https://support.google.com/store/answer/6160267
https://support.google.com/store/answer/6160259
https://support.google.com/store/answer/6160267
Apple
https://support.apple.com/en-us/HT202631
For further assistance, we kindly ask you to contact Google's/Apple's support team directly.
For further assistance, we kindly ask you to contact Google's/Apple's support team directly.
Kind regards,
Team Block Craft