Sounds weird...
Do you know to what extent those are correlated? That is: is the contractor told every time the filter thinks it has found adult entertainment? Or was your case exceptional?
This reply is really delayed, but our office rather small and so the contractor is notified and the event logged every time the filter thinks it blocks adult entertainment. I was being stubborn and repeatedly trying to access the site via other directories, link patches, etc. and that’s why the contractor was actually notified in real time.