Incorrect Price

It is now so frustrating to go to PnP Senaoane and always have to argue with the staff of PnP and them not being competence I took a product priced R27.99 and after paying, checking my invoice I noticed I was charged R34.99 their supervisor's told me barcodes on the product and price tag don't correspond so I can't be refunded the difference I was charged I had to refund the whole thing and go to their competitor cause of their negligence in pricing, this is not the first time I had to face a problem in pricing with this store. They seriously taking clients for granted, a person has to drive to PnP Maponya mall cause the service at Senaoane is really bad...cashiers don't even greet you have to greet them, ask them for a plastic bag they don't ask customers if they want a plastic bag or what... So fed up.