Unhappy customer

Guys KFC just made me never ever want to buy from them. Monday we went to KFC Capricorn Muizenberg. Machine was faulty and we had to swipe again on a other machine. So R333 went off only to see Wednesday another R333 went off. I phone The same day and they ask my card number only to get another call today it will take up to 7 days to investigate. I went to the store now and the supervisor made a call to area manager and came back they want a bankstatement. This is so unacceptable. I had all the proof there my slips and the proof of sms's. The bankap with all transactions. Still I must wait 7 days. I ask the area manager's number. They don't wanted to give it. That is so poor service from KFC Capricorn Muizenberg. The most ever terrible service.