Ordering a taxi on behalf of someone else is not a problem with FREE NOW.
To do so, simply book the taxi with your account (the fare will be debited from your account).
We recommend that you contact the driver once they’ve been assigned to let them know who they are picking up, and possibly provide them with the contact details of the passenger(s) to make things easier.
You can enter a message before you order by tapping "Message to Driver" in "Booking Options."
Additionally, you can call the driver to let them know once he/she has been allocated to you.