Bad Service from Engen garage convenience kempgen

I went to Engene garage In Kempton park Kempgen next to Arwyp hospital ...Yessesssss I'm so ****ed, the service was very very bad. I gave them R150 for fuel and to my my surprise the guy didn't put petrol in my tank. I drove away thinking maybe the guage will go up , but it didn't... I Stopped at some engen garage in benoni , put R100 fuel again, drove back to Kempton park.... Your service is just poor... My time was wasted, had to spend extra R100.. what an inconvenience... I demand an apology from the Garage and I want to know wat must happen to the extra money I used and time. I'm so angry