Have you already pushed the settings and restarted the agent service after first creating action A/B/C or after most recently modifying the settings for those actions? When creating/modifying/deleting an action, the changes don't take effect until the agent receives the new settings and the agent service restarts, after that as long as your filters are configured correctly they should start working with any new/modified actions.
If this is something you've been testing on the EventSentry server, you can just click Home > Services and click the top Restart button and that will restart the agent service. If this is something you've been testing on a remote agent, you can click Groups > Push Configuration > Go, and then click Groups > Other Actions > Restart > Go, this will update the settings and restart the agent service for all of your remote agents.
If that doesn't fix it, it could be that the filters or packages aren't quite correct. You can use the filter rule test utility to see why an event matches or does not match the filters: https://www.eventsentry.com/documentation/help/html/?console_testingfilterrules.htm
the easiest way to launch it is via right-clicking an event in the console, which you can see in the menu screenshot here: https://www.eventsentry.com/support/tutorial/topic/include-exclude-filters/step/3