Carltex garage poor service

I was at carltex garage Florida corner Albertina Sisulu Road and Wandel Street yesterday morning, the petrol attended Abram and his colleague both run to service one customer.When I told Abram that I arrived first he was rude and told me to go and he went ahead to help the lady. I ask to see Manager for this matter and the Manager check cctv I riding checkers delivery s******. I always use this garage on my way to work .I told Manager I thought it's Carltex rules to help cars first,and delivery s******s we are not important as we pour less than R140 petrol .l told the Manager I'm going to report this on Hello Peter ,she said go ahead I think they will take you seriously next time.When I went back to my s****** to pay, Abram came to me and told me not to mess with me,the manager came and told him to go back to work cars are waiting. I'm disappointed with carltex, I expected better quality. Your staff threatens customer ,are rude and have poor or no customer service.