I spent a week down at Banana Beach (just north of Port Shepstone), and blanked too. I saw one small, but legal size shad, and one small cob come out in te whole week. I fished most mornings, mostly throwing lures, spoons and plugs, and also tried some lovely pink prawn. The other people using sards were not catching anything either. I did not travel up or down the coast, just fished Banana Beach as it was an easy walk from the time share where we were staying. Spoke to other people who had tried other spots, and they were also not catching much.
Was much better than being at work though...............