Royal Mail is by far the worst delivery service going. It's not Royal and it's not mail. I have had to complain three times this year at the local sorting office about mail being put through the wrong letter boxes. These over-rated ex-public servants has lost the responsibility and esteem that the postmen of old used to have. They are either thick or criminal. I have an empty house near me where post for other addresses regularly gets delivered to. Some of it is in bundles with rubber bands round them as if never sorted. I think this is deliberate and not genuine mistakes. The postmen they employ now and the general culture that pervades Royal Mail means it's quicker to dump mail than deliver it. The same idiots that walk around in silly shorts in winter are the same ones dumping your hospital appointment.