The 739 system belongs in the last century ! ...If i stick to companies using Hermes and i miss a delivery ,then i ring the girl on her mobile and it is delivered the next time she is in the area ...with Royal Mail ,you have to go down the sorting office or arrange a different delivery day ....and it is unpredictable when they will arrive ...so a lost day ,sitting at home waiting . The world had changed since the 739 system was introduced , we are increasing pollution ,wasting time and telephone calls ...sticking with this antiquated system. I prefer to order from a company a company that ...doesnt...use Royal Mail !