WRONG OVERPRICED PRODUCTS

On Friday 21/06 I ordered 2 types of crumbed chicken patties. THe one was a smaller oval type (4 in a packet) for R64,99 p/kg - 2 packets, and the other one was a bigger pattie (2 in a packet) for R96,99 p/kg - 2 packets. I received 4 packets of EXACTLY the same pattie (the smaller oval one 4 in packet). 2 packets was marked R64,99 and the other 2 marked R96,99. I phoned the help line twice and emailed several times. It seems they does not understand the issue as the lady said: Its a weighted item, the prices will be different. I KNOW ITS A WEIGHTED ITEM, THE ISSUE IS ITS EXACTLY THE SAME PRODUCT FOR WHICH I HAD TO PAY R96,99 P/KG INSTEAD OF R64,99 P/KG. THEN THEY ISSUED ME R12,96 CREDIT????? ARE THEY IDIOTS????????? i even sent them photos!!!!!