The "Garfo da Sorte" is an app that raffles 1 in 40 meals among customers of an App users restaurant.
For customers to participate, at the end of the meal, after asking for the bill and before paying, activate the "Garfo da Sorte" App and check if a meal is offered.
If App user have duplicate points the probability of winning the meal doubles to 1/20
Some restaurants will draw more meals and the probability of winning will exceed 50%. The restaurants that make these extra promotions are signposted on the App.