bad customer service

i send one of my workers to buy yoghurt at dairy exchange 2x 500ml , when he came back i ddnt like the other flavour which s plaine yoghurt , in ten minutes time we went back together and i spoke with ROSE call her as a manager ,she refused to change me the yoghurt and i asked her as a pregnent woman you can eat somthing you dont like,, she sad she won change it that the police company , i mean for me as a customer when i went to buy to the shop i dont look around on the walls to read the comany poliecy as she sad ,, i walk out without them change it . a m not realy happy couse i ddnt slp wth yoghurt and its nort open yets as i ddnt even spent ten minutes with it