Piet retief p&p yuk

Went to Pick and pay Piet retief and jacobs 3-1 boxes marked with price of R42,99 and at the till it rings R69,99 after i took manager to the boxes he says it is not that but it says Jacobs 3-1 box then i said he must get me that jacobs that was advertised he said they dont have and someone must have put the wrong price on and simply turned around and left this manager has no people relations his name is apparently Pieter, another manager helped me but tis mr Pieter was nowhere to be found . Utterly disapointed i purchase at this p&p just anout every day , discusted