Extremely poor customer service

I booked for a car rental through first car rental, paid them on the website. My money was gone from my bank account immediately. Although I did not get any confirmation of the booking. Called the call center and they said money hadn't come to their side and they have been problems with their clients with the same issue. I made a complaint on their site and Esna Venter rep**** she will assist me but even after 24 hours, no reponse. I emailed them and complained and Akhona Ndamase rep**** that she will assist me. Now its been more than a day and still haven't got any confirmation. I asked to cancel the booking and now she wants my credit card details to refund the money. 1st of all, how do they expect someone to give the credit card details when they were already so inefficient. Secondly, if they money hasn't come to their side, how are they going to refund me. Anyways, I have called the booking now as there was no sense of urgency or a sincere effort from their side to help me. Now, I have to go to contact my bank and reverse the amount. So much hassle for nothing. In short, experienced very bad service from them & will never use them again. ONE REQUEST, PLEASE RESPECT YOUR CLIENT