Bad customer service mislead with prices

On the 7th of June I went to pick n pay Cornubia to do shopping as I was doing my shopping I came across a deal for the donuts 2 for R16 and the long donuts 2 for R30 so I took those items. The employees working at the bakery never mentioned I needed a code on it. I proceeded to the teller to pay for my items the cashier said I needed a code on it I told her they didn't mention that to me. So she asked another guy to get a price on it but when it came back it didn't come back with the special prices that I said above. I was shocked and apolled at how they are misleading the customers in that store . She began scanning my items and me and my spouse was unhappy as our kids wanted the donuts so we told her that those donuts were on special and that theirs no communication amongst them all. She called a supervisor and with all due respect the cashier and supervisor are Black and were speaking in their own language the supervisor didn't greet us nothing I don't know what sort of behaviour this was. The supervisor started to adjust the prices to the correct special prices but she never apologised to us nothing they didn't communicate with us. This is pathetic customer service from the stuff of pick n pay Cornubia. I'd rather shop at pick n pay cresent they much more friendly helpful. Becareful customers of being mislead at pick n pay cornubia