Sometimes, there might be a small delay between the time of purchasing an item and receiving it.

• If you successfully made a purchase through Google Play Store/App Store and your coins were not added to your balance, please completely close out the app and then reload it.
  Sometimes it can take a bit longer for the Google Play/iTunes servers to sync up with our own, and this restarting of the app a couple of times can jump start that process.
• If you have tried this and your coins are still not reflected in your balance, please contact the Customer Support and provide the Google Play store/App Store purchase receipt with Order ID.