The privacy of our users is extremely important, therefore, drivers aren't able to see your mobile number.
We use phone masking services that route calls through a privacy system in order to display a generic number to both passengers and drivers. Phone masking only works if your FREE NOW contact number is up to date. You can find out how to update your number, here.
You're able to phone your driver via the app during the trip and 7 days after the trip has ended. Information on contacting your driver about a lost item can be found here.