Unfair treatment at Engen South Africa

On the 13th February 2019, I contacted Engen South Africa customer call centre with a Engen no1 Stop Big Bird complaint. My car broke due to Engen's negligence. Engen already admitted to this - my car was towed for repairs. It's a month since the incident occurred and I still don't have my car. Customer service doesn't exist at Engen South Africa.