Steeling a box of fish

We bought a box of fish at Pick and Pay Centurion lifestyle centre, when we got home and unpacked the bags there was no fish. I went back to them and they say the are sure they packed it in. So unless someone broke into the car while driving home and stole the fish, Pick and Pay never packed it in. So now they loose a regular customer, for a R100 box of fish, they don't care about the customer at all.