The price you are shown when setting up the benefit is the maximum price you will pay for this route. You won't pay more than the protected price except during the busiest times. During the busiest times, you'll save 20% on your rides.
The benefit protects you from high fluctuations in price, which may be caused by dynamic pricing, traffic or other trip-affecting factors.
If you believe price protection wasn't applied to your ride, let us know below.