Bad service

Good day My name is Dunisani on the 25 August i went to Ackermans at Acornhoek to take out a lay bye, the Queue was long n slowly but i patiently wait until i reach cashier terminal and i was assisted by SONIA after i payed for my lay bye she told me to wait just next to her till i waited until after 30 minutes and ask am i getting my lay bye then she said i must go fetch it at the back of which she didn't tell to me so this was the bad service i've experienced i went there as instructed though with a broken heart i fetched it so when i approached the security at the door the security said where is the slip i showed her what they give me so she started throwing tantrums on me saying i will not go out without a slip so after few minutes she called Sonia who assisted and only ti find that the very same slip i gv her was the one she's looking for, so i felt embarrassed and angry because even one customer noticed what happened to me.