Wrong and unfair treatment sale

At about 2:30pm today I bought biltong at Germar biltong and specifically asked for a hanging stick , which I asked for one of R150 , I asked them to cut it for me not thin slices , i them left the store, when I was in the new park complex still at checkers store I realised it was cut thin, I went back to the store to ask them to change it as it’s not what I asked for , they refused , they instead took the biltong and didn’t give me my refund or the biltong I asked c the lady who helped me was very rude and felt entitled and dismissive towards me . I’m deeply hurt for my money as there isn’t anywhere I can even complain to get my money back . Their number ***