Can I Choose to Remove or "Ban" a Contractor From Accepting My Trips?

Yes, you can remove a contractor from being able to receive any of your requested Trips.

On the left sidebar, navigate to "People" then select "Drivers." A list of all the contractors associated with your account will be displayed, indicated by a "C" under the column "Type." Select the profile of the contractor, and click on the "Ban" button in the upper right. This contractor will no longer see or be eligible for your future Trips.