B used his own vehicle and mobile phone when working for Yodel. He had some flexibility over his working hours, and he could work for third parties, including Yodel competitors, at the same time as delivering Yodel parcels, and decide how many, if any, parcels to accept. Under Yodel’s standard terms, Yodel couriers can sub-contract work or use a suitably qualified substitute, although the Yodel courier remains liable for anything the substitute does, and Yodel sets broad time slots for delivery.