Is there a law (postal services acts), a regulation or a Royal Mail policy for the earliest delivery time of letters?
I've checked both Postal Services Acts (2000 and 2011) and the 1999 regulations to no avail. The only valid answer I found is in this forum, but was given in November 2012, and roughly states that knocking doors to deliver mail is not acceptable before 7am, but if the letter can be posted through the letter box, if could be delivered earlier.
Does anyone know if there is a 'law' behind this? If not, is it just common sense --not to bother people before 7am?
Also, are there differences in various depots/different cities/urban-rural environments?
Many thanks for your input!