Pick n Pay Northridge Mall, worst customer service...

Complaint about Pick n Pay Northridge!! I was there today (23 June 2019) at 11:09, shopping for some things that I needed and wanted. Went through to the till, everything was still smooth, until I asked for the Pick n Pay Cricket cards, as I had spend R150, then the cashier Molelekeng Mbena (the name on her name badge said Julia) got all rude and said that I it didn't show on the system that I qualified for one. It then angered me completely as I didn't ask for her to be rude, so she tried to check on the slip where it shows if I qualified for anything, but she didn't even know where to check, then I had to show her that I did qualify on the slip, but argued and said that the system showed nothing. I then asked for the manager, and she quickly gave a card, I then had too ask again for the manager, and showed him as he slowly approached with a attitude like he doesn't want to work. So I explained to him what happened and again she got rude and sarcastic that she did give me the card and the system didn't show that I qualified. The manager stood there silently, he didn't reprimand her, he just calmed, so that angered me more, because how can he be a manager, if he can't even control his staff... I called the shop twice afterwards but nobody answered, so seems like nobody there wants to work... It's the worst I've ever been treated as a customer anywhere!!