Does not work at all – Call Control: #1 Call Blocker Review

Installed and set up spoof blocking. 1 minute later, I get a call. Not blocked. What is this app even do? And yes, it’s operating in background, yes the settings are all correct, yes, I have notifications. So before the developer starts telling me it’s user error, it’s not.
Review by PatDuffy on Call Control: #1 Call Blocker.