Pathetic service from MFC

We were under debt review and end november 2024 we made our final payment. Since december the debt review company we have used have been trying to get the paid up letter. In january a letter was received but not for us. Since we requested for the correct letter we have had NO response from MFC. We need the metter so we can get our car papers. MFC is providing the worsed service. They dont respond back or call back. Pathetic