The numbers you see on License Details page simply says how many Nodes, Volumes, Interfaces you have in database. You can check it by yourself. Just run sql select in Orion db> "select count(InterfaceID) from Interfaces" and it will tell you how many Interfaces Orion manage (you could use Orion Database manager for example).
The reason why you have more interfaces than licence allows could be "wireless devices". Don't you manage some in your Orion? In previous version of Orion wireless controllers added interfaces to Interfaces table without checking license. It's already fixed in SP3 but some of these interfaces could remain there from past.
You could find these interfaces by this select:
SELECT InterfaceID FROM Interfaces
WHERE (InterfaceIndex=0) AND (InterfaceType=53) AND (InterfaceTypeName='ieee80211') AND (InterfaceTypeDescription='Virtual Interface representing Controller Interface')
If this select returns some IDs I could give you advice how to remove them.
johnsm, are you good?