TERRIBLE customer service

Pringles large tube priced on shelf R17,99.Rang R19,99 at till! Had to schlep to Customer Service.2 staff at counter-explained I need their urgent assistance as I bought ice cream and since they had no ice in the store, the ice cream has already started melting.Advised about Pringle price issue.Both looked at me very disinterested &the one staff had the audacity to say, sorry I did not hear you?! I was fuming!I again as per the first time,clearly explained.The woman made an announcement for Marvin.I asked where Marvin was &they said in that glass booth in the Management's office.He was not getting up after 2 minutes &I said they needed to walk there &go and call him.The one staff member slowly walked away.There was no communication or action from either one of the two, to tell me that they understood the urgency &that they cared at all!She announced again &then Marvin showed up.Was rude and abrupt and said to just give me the right price.No apologies,no interest to even correct the issue on the shelf! I asked for double the difference price policy for THEIR error &was told the policy no longer exists!?! Pick & Pay clearly is not protecting the customer against system &staff errors!