CASH BACK QUERY

On 18 AUG 2015 I MADE A PURCHASE AT ABOVEMENTIONED STORE PAYING WITH MY DEBIT CARD. I RETURNED ALL THE GOODS ON 21 AUG. THE STORE CREDITED ME ON MY CREDIT CARD. I RECIEVED A PHONE CALL FROM ABSA BANK INFORMING ME THAT THE CREDIT COULD NOT GO THROUGH BECAUSE THE PURCHASE WAS MADE WITH MY DEBIT CARD AND I HAVE TO GO BACK TO THE STORE TO GET MY CASH FROM THE STORE. I WAS ON HOLIDAY IN PORT ELIZABETH AND RETURNED HOME (MPUMALANGA ) THE NEXT DAY. MONDAY 24 AUG I PHONED THE SHOP TO FIND OUT ABOUT THE CASH BACK. THEY PROMISED TO COME BACK TO ME. ON MONDAY 30 NOVEMBER I RETURNED TO THE SHOP WITH A COPY OF MY BANK STATEMENT TO PROOF THAT THE TRANSACTION WAS NOT REVERSED. AGAIN THEY PROMISED TO CONTACT THE HEAD OFFICE AND CONTACT ME. TODAY ( 9 DECEMBER ) I PHONED THE SHOP IN PORT ELIZABETH TO SPEAK TO THE LADY THAT HELPED ME. SHE WAS NOT AVAILABLE. I GOT THE TELEPHONE NUMBER OF THE REGIONAL MANAGER - AMY ***. I PHONED BUT COULD NOT GET HOLD OF HER. I FIRST LEFT A MESSAGE FOR HER TO PHONE BACK. BUT NEVER HEARD FROM HER. THE SECOND TIME I PHONED THE CALL WAS ENDED WITHOUT BEING ANSWERED. THE AMOUNT OF THE PURCHASE WAS R3685. I CAN NOT AFFORD TO WAIT INDEFINATELY. UNEXCEPTABLE!