There were some problems happened to our payment system these days. And we‘ve just solved them with the version 1.0.25, please try to update to the latest version and send an email again within our game(click the button "Settings"->"Contact Us").
ATTN: Don't delete the default device information in it. We will add coins/remove ads for your account after we get your email. Sorry again for the inconvenience for you.
What's more, if you still want to refund the money, please email your order ID information from Google Play Store, and we will check and process to refund. After you get the refund, hope you can still enjoy the game again and consider giving higher ratings for it. We're looking forward to your great support!
If you still have any questions or feedback, please email us to know. Thanks!