Is there a way to undo 5 extra moves at the end of the level which I accidentally bought?

This is not the first time, but like 5th (at least). I am stuck at a certain 2000+ level and am losing my temper over it, so as soon as I figure I can't pass it, I quit and start over for as long as I have lives left. This time I accidentally bought 5 extra moves while quitting the current game. These were my only 10 gold bars and I would like to have them back, especially knowing that I am left with almost no boosters at all, specifically for this nasty level and was thinking of buying some. Why isn't there a security question after clicking/purchase where the player would have to verify that they indeed want to spend their gold bars?