Since the launch of the Prize Spinner we've seen thousands of video views, spins, and prizes sent out to players. We've also had a few players voice concerns over mobile data usage when watching these ads. While we look into potential options to address this we're going to be temporarily disabling video ads on 3G and LTE networks. This means that you'll only be able to Earn Tokens while on a Wi-Fi network. This update will be in the Google Play Store later today, and will be coming to iOS as soon as it's approved by Apple.