Refund on my bank account

On the th of June 2022 I went to Fourways Edgars with the Red Hanger sale. It was during load shedding when I was at the till and I swiped my card. It deducted on my account but not on their side. When I queried about it last week after a cashier told me that i can bring only my bank statement and get the funds reversed in my account and I did just that last week Saturday on the 2nd of July. I was told they need to call Head Office on Monday. Yesterday they called and promised to get back to me till today. On top of that they over charged me as well.