John was pressured into buying a long$-$distance calling package from a salesperson. After making a number of long$-$distance phone calls using the service and getting his first bill$$ John strongly feels that he has fallen victim to the salesperson's high$-$pressure sales tactics and wants to get out of the contract. If he can successfully argue that he is the victim of unfair sales practices$$ what remedy$$ if any$$ might be available to him?