I had a similar problem. The way it was explained to me was that in practice, there are two databases used in the UK for this commercially and they don’t always

I had a similar problem. The way it was explained to me was that in practice, there are two databases used in the UK for this commercially and they don’t always agree. I used to live in a bungalow next to a large house that had been converted into flats. In one database it was listed with the bungalow name then the street name, and in the other database it was listed as “Flat 8” using the other building’s street address. About half of British delivery forms used one place, about half used the other.