Selling a vehicle that is finance through MFC is a horrible nightmare

Selling my car through MFC and Avo Assisted Sales has been such a nightmare. I sent thorugh all documents are required and it been more than 8 days with any feedback or someone at least to contact me. Whenever I call MFC, the consultants tell me that the department that assists with the car sales is a different department and they do not take calls....like what the hell is this nonsense. I even went as far as getting offers to purchase myself and still no response. I am so frustrated and have resorted to come onto this platform to get someone to please contact me urgently.