Poor service

I was at Ackermans Randfontein today to buy bokkie t-shirts I gave the dark guy to keep for me as I was going to fetch my wallet when I went back I asked a light complexion lady she said she has sold it and busy laughing at me as if I'm stupid and I wanted it for my daughter their service is poor you can see with no staff helping customers I was angry because she is laughing she can't see anything wrong with what she did.