At the time a setoff is identified, the debtor shall be notified by the comptroller or the director of taxation of the State’s intention to apply the debtor’s debt against the refund. The notice shall state that the debtor within thirty days may request a hearing before the claimant agency to contest the setoff. No issues that have been previously litigated shall be considered at the hearing. Appeals from the hearing allowed under this section shall be in accordance with chapter 91.