Just one example where some Discogs contributors don't know their arses from their elbows! I don't think that Kent Soul (nor Kent Dance) are a label or a series, I think the Soul and Dance are just descriptors of the content; as far as Ace's print and online catalogues have always been concerned, it is just one label, called Kent.
EDIT: Anyone here who really wants to could just use the Tag feature to add the Soul or Dance.
Just looked at "Kent Soul" on Discogs,and,according to them "Kent Soul is a label,not a series",here,in which case,you'd have to amend all of the "Kent" labelled CD's on the database to "Kent Soul".
Related releases presumably starts at "CDKEND001.....,then they have three pages to CDKEND478 (2018)",and also other prefixes "CDKEN...","CDKENM...","CDTOP...","KENTBOX..."
MODS!!:)