bad attitude

I went to Engen garage this morning. Bekker and Montrose street Johannesburg(Vorna valley). I don't like complaining but the attitude I got from a lady called Mokgetsi or Mokethi was very bad that I don't think I will ever go there again. She works at the kitchen and imagine how many people will she give such attitude and will let it slide. I work with people and I take service very important. My clients become a priority. Please look into it.