Bad service

Was at pick n pay hutten heights today and saw an item that was displayed at the lesser price when I got to the teller to pay it scanned another price and I asked for a supervisor Cebisile Zulu she told me she can't help I then requested to c her manager Liza n she said the same thing I left the item didn't pay for it and I was angry cos I don't do the store merchandise it's not my problem the price I c on the shelve I Hv to pay that as customer is always rut