Cabify is a ride service like Uber. They offer you a bonus on your first ride.
Cabify can be found mainly in South America, Spain and Portugal. For every 1-2 km you ride, depending on the country, Cabify will credit you with 1 avios. With this promotion, you will earn a 400 avios bonus on your first ride. If you happen to visit some of the countries where cabify is available in the future, use it once, instead of Uber for example, to get 400 free avios.