When you make a mistake in trading, there are no money back guarantees that can give you back your hard earned money. Turnabout is a conservative approach to trading support and resistance. This is the closest to the money back guarantee that you can get when trading support and resistance.
Support and resistance is one of the key concepts in trading. Support is like the floor of a room. When you hit it with a ball, the ball will bounce up. In the same manner, resistance is like the ceiling of a room. When you hit it with a ball, the ball will bounce down.