The means of blocking is the car that they have sitting in the spot, which presumably they won't move until the payee shows up. Its also not paying for prior kn

The means of blocking is the car that they have sitting in the spot, which presumably they won't move until the payee shows up. Its also not paying for prior knowledge but payment for vacating, as the Monkey Parking website clearly states: "Get notified about drivers willing to pay you for leaving your parking spot"