Numbers blocked but still getting through
I have iPhone 8plus with ios 13.3. This happened with previous IOS too.
When a caller calls and its an unwanted number I tap on the little i next to the called number and scroll down to Block this caller. However I am still getting the numbers I have blocked come through. I see today a number I have blocked has called twice today and as I didn't answer they appear as a missed call.
What exactly have I done wrong or have I misunderstood the feature somehow ?
When I Google how to block callers this is the exact procedure I'm, supposed to do
[Edited by Moderator]