kfc deducting money from customers online without permission

on the 8th of june i made a online order at this kfc in ladysmith kzn san marco centre. on the 11th of june a duplicate amount was taken from my account which i didnt order.i have lodged a complaint and i handed in proof with a bank statement to show that the amount was deducted without an order or my permission. i was promised last week that they will refund me the amount up to date and time i am still waiting......when i asked the area manageress for voucher in good faith for all this unnecessary drama she did not even bother replying. fed up of people taking what doesnt belong to them....