Incompetence and not understanding their own terms & conditions

My card was ****** from my possession, and someone was allowed to swipe around R8000 worth of phones and clothes without any verification done, the purchase was made at Exact Maponya Mall, I am so disappointed in the service delivery from most of these big companies, I went to enquire about why proper checks were not being made before selling to someone and I was told unfortunately "that's how it is" the people who authorized the sale and the ********* should account, I'm just disappointed and once I've settled my amount before the ********** purchases I want to close the account and never affiliate myself with them again also I plan on sueing that store