Treasury has called for finance industry comment on the effectiveness of the ban on mortgage exit fees.The bank competition and funding unit of the Financial System Division of Treasury has written to "interested stakeholders" asking for comment on the reform, which was introduced in July 2011.The ban on exit fees is intended to stop the practice of lenders charging high deferred establishment fees as a way of locking borrowers into loan contracts.The prohibition does not apply to break fees on fixed rate loans or discharge fees that cover the lender's costs in the normal course of terminating a credit contract.Some lenders responded to the introduction of the ban by introducing or increasing application fees, adding discharge fees or raising interest rates.Treasury has asked stakeholders to comment on whether they think the reform has achieved its objective. It also wants to know what stakeholders consider have been the main impacts of the reform and whether there have been any unintended consequences.