Ms Levin wrote An Insider's Story Of A Life In & Out Of Hillsong after becoming disillusioned with the multinational pentecostal church in 2001 and began asking questions about the church's leadership and its ministry.
But Hillsong said Ms Levin's actions were "a cheap publicity stunt".
In a statement to Fairfax Media, Hillsong alleged A Current Affair and Ms Levin were "harassing minors in an unethical manner" outside the conference.
But Ms Levin said the only disruption she caused was to express her disgust at a fundraising tactic used by the church to a handful of delegates including a relative of Hillsong's leadership....