If you don't see the update in the store, it means the update is coming a little later for your region. Please try to update the game again later.

If you still can't update the game after a while, please do the following:

  1. Go to Settings > Apps & Games > Manage All Applications > All > Appstore and select Clear Cache;
  2. Restart your device;
  3. Go to Appstore and download the latest game version.

If it doesn't help, try uninstalling Appstore updates in Settings, restart your device, update Appstore and then update Klondike.