Bad service

I have had a bad experience at this store , person who said shes the owner of the store responded to me via email as Karen Korsten , she rep**** to my email saying it should have been campus square but they have various stores ,why did she mention this store cause it seems as if she has a number of complaints to my understanding. I received an email as well as a call , I could not attend too was doing laundry.I attended the store to buy balloons , mini black board and a journal Bible. I went back to the store the following day to buy the juice pilot pens for R800.Initially when the cashier gave me the receipt I dont remember her giving me back my card.The card was then used in tap to pay transactions in Randburg.I then reached out cause I was distracted when leaving the store and focusing on my 1 month old baby.I then asked for camera footage and if a video can be sent to me via WhatsApp the owner Karen Kirsten said her staff does not take cards from customers an she cannot assist me any further ,yet over the weekend I asked if she can please check the CCTV footage she agreed ans said she will do it today which is Monday, suddenly today shes saying she camt help me CCTV footage is not working , yet it is of vita importance for it to work.How can the CCTV footage not work when this is requested by me , to confirm if I took the card from the cashier as I told her to keep all receipts ,when walking out of the store maybe it could he she kept the card or i took it an lost it along the way ,I have proof of communication via email and WhatsApp shes insinuating the staff member never took my card , what a time to be alive , so if payment is made one obviously have to hand the machine and card back to the cashier to confirm payment.Shes insinuating all this to my understanding it seems as if shes covering for staff members and previously said this could be *****.It can't be ***** cause this person has my card with them.