Every Every bad service

My brother bought new S4 around February 2019. He took the car back due to over heat on 26 June 2019. The car is still at Mahindra Hatfield. He use this car for business and he have three people working for him. This is the only car he have to run his business. He had already lost five clients due to non availability of car to delivery the product while he must pay monthly installment without fail. This is POOR service at highest order. He ask for replacement car so he can run his business, he was told that he did not buy the car from their dealership. I believe if it was a WHITE person will have been given a rap lace meant while they fix his car.