Very bad service

I am expecting pick n pay to have responded to this matter and regarding the slip I left the slip with the cashier last night as I didn't wanna cause heavy drama at that particular time. As much as the cashier did a mistake from her side all I wanted is my refund to be able to go buy electricity somewhere else to have my lights on but all I got there is a service where I couldn't believe where she tells me that she will never do that refund from her side. The way I was so ****ed I left just not to cause drama infront of the other customers but realising that my kids slept without eating and waking up bathing with cold water and not eating again their most important meal of the day to start their day which is their breakfast it ****s me as a parent knowing and stressing about how my children are for the day and only knowing that getting home again tonight it will still be without electricity that will be the most silent ****ing fact as a parent for your children to expirience due to the fact that the mistake was done by the cashier of pick n pay. Pick n pay tlaks and preaches about customer rights always but for a moment there last night where was my rights as a customer. I am even asking myself if pick n pay does it give its employees at PICK N PAY EXPRESS SOWETO HIGHWAY in DIEPKLOOF ZONE 3 proper full training in terms of TREATING CUSTOMERS WELL according to the COSTUMER PROTECTION ACT