Watch out not to get ******

On the 22 June I went to get a pie and snacks at Umdloti, after paying I noticed that I was charged double, one for the things I bought and a different amount of things I did not buy. When went to the store to report and they told me that they money will bounce back, I went and the manager just said I will get my money till today nothing, so when going the you don't get ******