Donna's father promises Donna that if she studies hard and obtain a high distinction for her Business and Corporations Law course at RMIT, he will give her $1,000.00. Donna and her father sign a written agreement to this effect. Donna tops the class and receives a high distinction. Donna asks her father for the money he promised but he refuses saying 'you haven't done anything that you're not already required to do. Your high marks should be enough 'reward'. Required: Can Donna can take successful legal action against her father?