Double charge on purchase

I purchased at Star meats in durban on 17 April 2022 while processing the payment via debit card and entering the pin the cashier said to remove and re insert the card and pin again. After realizing the payment went through my account twice I contacted the store and spoke to Riaz who asked me when will I be returning to the area for a refund and I was also told I will be contacted by the accounts person sagren after they close for the day and process the accounts for the day. I have contacted them today as I received no communication from them yesterday, Sagren was not aware of my query of being double charged and then continued to be rude and tell me that they video footage takes up to three days to download which is totally irrelevant to the double payment being processed by the cashier as that should be checked on the daily financial cash up. He further then said it's a long weekend and I should go to the bank tomorrow and come to the store with a bank statement to provide him with proof of such double payment. I am utterly disgusted at the manner in which this is being handled. It is a simple process to be followed in store to check the double payment which was incorrectly done on the part of the cashier. However I am told to inconvenience myself. Should Sagren or Riaz be faced with this situation they have placed me in they will not be merely just awaiting for the manager to return they call when and if he is available that's what I was informed to then wait for.