I have the same problem.  I added a cell phone number to my never allowed list and the call still came through.  I check it periodically and seems to disappear from my list and I have to add it back in again, but this feature does not seem to work to prevent caller from calling my line.

you should be able to add said number to the phones do not allow/block list. a bit of a double block..

also...do you have an android phone or apple?

Hi. I have an iPhone. I can add the phone number to the account but call still comes in. 

unfortunately there are some ways that it can be bypassed..if im thinking right if they use imessage instead of a regular text the message will still make it though. i think the same scenario with facetime calls/video calls...