Royal mail Key to open house or states?

Question

Do you know how you call the key, that some post man have to open the main doors of some houses or states.

Is it possible to bye one of them?

I dont make delliverys just in the morning so i cant use the trade boton after 12:00.

Answer 1

hi you could go to the local council in harrow but good luck or you can start your delivery's earlier