[MargaretR]

I have a stock of UHT which I will reduce before I approach a milk delivery man.
I think that some may refuse because no-one around me has milk delivered, and they may not be willing to expand their route for just me.
There is another potential problem - I would want it delivered to my front door (up 13 steps in a communal stairwell) - the entry door to the stairwell isn't unlocked until 6am.

So the more phone numbers of delivery men I have, the more chance I have of finding one who will suit my needs.

I know it might sound petty to say I need it delivered to my front door, but I don't want to descend the communal staircase in my nightclothes to collect it.
I live in a block of 4 flats, and all the other flats are occupied by single men (one of whom is not 'full shilling')