From their S-1: >Driver incentives. Driver incentives refer to payments that we make to Drivers, which are separate from and in addition to the Driver’s portio

From their S-1: >Driver incentives. Driver incentives refer to payments that we make to Drivers, which are separate from and in addition to the Driver’s portion of the fare paid by the consumer. For example, Driver incentives could include payments we make to Drivers should they choose to take advantage of an incentive offer and complete a consecutive number of trips or a cumulative number of trips on the platform over a defined period of time. Driver incentives are recorded as a reduction of revenue to the extent they are not excess Driver incentives (as defined below). >Driver referrals. Driver referrals refer to payments that we make to existing Drivers to refer new Drivers onto our platform. Driver referrals are recorded in sales and marketing expenses, as they represent the receipt of a distinct service of customer acquisition for which there is evidence of fair value. https://www.sec.gov/Archives/edgar/data/1543151/000119312519103850/d647752ds1.htm https://www.sec.gov/Archives/edgar/data/1543151/000119312519... (pp. iii)