bad experience at Fishaways Port Shepstone-Oribi plaza

Fishaways Port Shepstone: I ordered 2 medium hake and chips, was charge for small size, but the attendant told me that she had ordered the medium and I was to pay in the difference. When I got my food, opened it in the car the serving was so small and there were literally 10 chips. I went back to ask her, because I wonder what their small looks like if I was really given a medium. I feel cheated. She didn't even give me cutlery or seasoning with my meal. The food is expensive and not worth it for the portion size