Pathetic from start to finish

I tried to rent a car via the Bidvest site using ABSA rewards option to obtain my 8% discount & there was an error on the site. I sent an email to which no-one responded. A day later I tried again and still the same error, I called the call centre & they said they would book the car, but it would cost me more money through them as it wasn't being done online, even though the error on the site lay with Bidvest. After waiting 40 minutes they said there was a problem with their site and if I tried again in a few hours time, their IT department will have fixed it The error wasn't fixed and I eventually booked a car via the site without using the ABSA rewards option. When I got to the depot to collect my car, I explained this to the manager and he promised that they would make sure that my discount was offered. I received my invoice & the amt was R583 MORE than what I was meant to pay - another error from Bidvest. A consultant has corrected the error of R583 but I still don't receive my discount, as I'm told that the ABSA rewards doesn't always apply, but this is not indicated on the site anywhere - incorrect advertising. I'm back to no discount & waiting for my credit....Pathetic