ACSA prebooked parking overcharge

<p>I used prebook parking at ACSA. I booked for 2 days and then went in one day earlier. 3 days later, upon exit, I get charged R1200 on my credit card. </p> <p> </p> <p>I have phoned ACSA parking but there is nobody available to assist me. How do I get refunded?</p>