Bought something on accident.
So I got a new champ and when the default screen popped up to buy an upgrade for the champ I hit the close icon in the top left corner. Then accidentally hit the go back button and then purchased I don’t even know what for 500 units. It was a 3* champ and I have zero need to upgrade them. It was obviously a mistake. Is there any way to reverse this? I had been saving units to make it through some of the 3 energy tile story quests. This stinks.