FAQs: Waiver of the Exchange Visitor Two-Year Home-Country Physical Presence Requirement (state.gov)
"Waiver recommendation applications are thoroughly considered, and the Waiver Review Division does not have a policy to reconsider applications once a final determination has been made. Also, there is no policy for you to appeal the Waiver Review Division’s determination. You may, however, reapply using another basis for waiver, if another basis applies to your situation."