Jesus said, “If he will not listen to the church, treat him as a pagan or tax collector.”
Got a verse for that, or should we take your sect’s word for it?
I guess Matthew 18:17 isn't preached on much in Protestant churches.
If he refuses to listen to them, tell it to the church. And if he refuses to listen even to the church, let him be to you as a Gentile and a tax collector.