Horrible service

On the 11th of December I went to the SuperSpar in zevenwacht mall to get some few items. Upon arriving at the cashier as I was paying using my Capitec card the teller gave an error message saying "the was no response from the server, transaction will be reversed immediately" while waiting i receive a sms notification that the transaction went through i advised the cashier who called her supervisor Nosiphiwo Nkohla who advised that they are experiencing system issues as calm as i was tried to find a solution contacted Capitec bank and the agent advised they can send the decline receipt so that they can remove the hold on the funds so that we can try again. Agent spoke to a manager by the name Phillemon who took details but did not confirm for accuracy and left with no sense if urgency even though he could see i was calling from mobile phone. He came back after a while only ti find out that the details he used for the email are incorrect m already in 15 minutes into the call and i questioned why is he chilled m using my cellphone and we going back and forth on an issue caused by their system he rep****"relax the is no need to be angry " he walked away eventually he came back and the agent confirmed issue resolved we may retry the purchase. While wasting my airtime trying to resolve their mess the Supervisor Nosiphiwo Nkohla is making remarks with other staff members" this girl is a nuisance for no reason" this entire time was still calm but it dawned on me as we are processing the transaction that i am humiliated by their staff members even though issue is caused by them and now on the 15 december m checking my bank statement the transaction is processed twice i have incurred further charges in my account Branch manager promised to investigate and contact me back on the 14 december till ti date no call from branch manager I have been humiliated by a manager, supervisor for their system issues that they have confirmed and m now incurring charges after Nosiphiwo confirmed that the transaction is not reflecting on their end Can someone from superspar in kuilsriver solve this mess that they have created