Bad service

I went to pick n pay mall of the south to buy few items then went to the till to pay the cashier that was helping me didn't even great me or acknowledge me as a customer because she was busy talking to the previous customer who finished buying asking this lady for a job while scanning my items she was exchanging her number with this lady who happens to work for the government from what I've picked up from their conversation after I've paid on my way out I realised that I was overcharged I then went back to the cashier showed her with an attitude she told me to go to the cigarette counter for a refund where I found Deslin a coloured lady who also didn't know how to process the refund it took over 30mins for her to try to process the refund until I call the front end manager whom also didn't care who was chatting to someone his attitude was also bad I'm sad to say I worked out of that store with a different perspective about Pick n Pay I feel that in such an up market mall Pick n Pay should have compitent people not the joke the have running their bringing the company into disrepute