As Charismatic Christianity affirms all the gifts of the Holy Spirit, believers can hear from God in multiple ways. God can speak through dreams, visions, prophetic words, or listening prayer. We see many examples of this in Scripture.
Although non-denom churches can be difficult to explain and define, I find them easy to justify. Non-denominational churches exist because God’s people are diverse and his passions include the entire earth. Some of us just don’t fit into a denominational box.