I was playing tower of fortune and I spent 170 gems to continue after selecting piggy cards to cross level 30. I didn't want to pay more so I selected the watch ad option... After which the app closed abruptly, when I opened the app again not oly did I lose all my winnings but I had also lost the gems... When ever I try to watch the ad the app closes abruptly and takes all my winnings/rewards...please help