Ongar is where the round starts. The town and the villages around it are regular drops, not a special trip.
Gardens, allotments and landscapers. A postcode in or around Ongar is usually a straight yes at the usual price: £190 for five tonne bags, about 800kg a bag by volume.
Andy still wants the postcode before he sets off. Some drives are tight and some lanes are not made for a loaded truck. He would rather say so than turn up and shrug.