CROFT shall not retrieve or transport any equipment from the client’s possession until CROFT has received a Unit Return Notification filled out and signed by the client. Should the client fail to send a unit return notification before the expiration or termination of the lease, the client will continue to be billed per the provisions of the lease until CROFT has received the Unit Return Notification. Should the client elect to return equipment to CROFT via its own or a third-party transport, billing under the lease will continue until CROFT has received the equipment.