Belittled by MFC

Never in my life have I been treated so shockingly and been belittled by a financial institution/credit provider. Bought a cheap car (70000) at Northcliff Exclusive Cars. Credit was approved by Mfc. Spent 3 hours at the dealer on Saturday collecting the car and signing 101 documents. Then get a call saying that they redid the affordability and now I don't qualify due to my new home loan and the car must be taken back. I have an excellent credit record and would never have considered this purchase if I couldn't afford it. I feel so embarrassed and belittled by MFC. Never will I ever fo business with the Nedbank group again. Neither will anyone that I know or those who read y social media posts. Problem is there is no more customer focus in the business. Computers make the decisions and that's why people can't think for themselves.