Bad Service & NO FEEDBACK - REALLY REALLY BAD SERVICE

I have had trouble with a vehicle for 2 months already. I tried to sort it out through the dealership and the vehicle stood in one of the Ford dealerships for 1.5 months. Ford SA replaced the whole engine and we got the vehicle back. After 3 days of having the vehicle we got the same problem again. Its been MORE that 2 weeks since the vehicle broke again and still no feedback. I logged a complaint at MFC to stop the whole transaction as we cannot keep paying for a vehicle that has been longer in the workshop than it has been in my garage at home. MFC assigned Nathan Sauls to the account. Since I logged the complaint at MFC on 20 November 2017, I have not receive ANY feedback from Nathan. He does not reply on my emails, he does not answer his direct line and if I phone anyone else at MFC they just keep referring me back to Nathan. I received a phone call from Steve on 01.12.2017 who handles the complaints at the dealership where I bought the car. He also cannot give me any feedback as yet as the engine is still being stripped in the dealership. This past 2.5 months I have struggled with the vehicle and I have struggled with Nathan at MFC. We are going on holiday soon and we do not have a vehicle to drive with as this vehicle has been in a workshop from 03 October 2017. I really hope by logging this review that I will receive some feedback.