Just let people unlock the item they want to unlock! This random thing is absolutely ridiculous and just a way to try and force people to spend money. Let us have fun and quit giving people the same thing over and over. It's almost a guarantee the item you try to unlock WON'T be unlocked. Usually have to try to unlock a different item to get the one I want. But when there is only one item left locked you will NEVER get it with stupid gacha diamonds... Gacha money is what it should be called!