To access the additional data, you need to license and install the premium on-demand package of the reference address database for the United Kingdom. Effective in version 5.7.0, United Kingdom reference address databases have the following different versions:

GBR5BI_03.ZIP
and
GBR5FC_03.ZIP
, which contain the extended data for business names and addresses. These packages work with version 5.7.0 and later.
GBR5BI_02.ZIP
and
GBR5FC_02.ZIP
, which contain the Royal Mail data with subbuilding descriptors. These packages work with version 5.7.0 and later.
GBR5BI_01.ZIP
and
GBR5FC_01.ZIP
, which contain the Royal Mail data without subbuilding descriptors. These packages work with version 5.6.0 and earlier.