What's the complaint? He was told upfront that on a discounted economy fare he would get 25% of the miles flown. All he had to do was read the program. The restrictions were plain and did not need a lawyer to intrepret them. Frequent flyer miles are part of an airlines promotional program and is subject to revision and/or revocation at any time. The airlines are under no obligation to keep the program going. Competition is the only thing that keeps the program alive.