CarFlexi.com a bogus company?

This is my complaint that has yet to be acknowledged, let alone attended to!

I made a booking via CarFlexi.com for my daughter to collect a hired car from the Port Elizabeth airport. After payment I received a voucher CF763601 via e-mail with full details of my booking. Only on receiving this I discovered that the driver would need to produce their credit card for the collection of the vehicle. This was not stated in your terms and conditions. From your "Commonly asked questions" it appears that this discovery post-payment is not an unusual occurrence! The driver concerned went to the airport and spoke with your supply partner. They confirmed that they were not able to supply the vehicle without her credit card. When I offered my credit card details or an EFT the response was that a sum of at least R8000 would be required.

I have requested an immediate refund of the R500 + paid for the voucher. I have no response from the e-mail or from the 24hour helpline advertised on the internet website.