appalling service

I made a booking on line and all necessary amendments were made the following day on the billing side, as I was not in possession of a credit card.The car was returned in a perfect condition and later documents were sent to my e-mail address with some additional costs, including 14% vat on the initial car rental agreement amount.The fact that petrol was refilled back is what I queried.The attitude i was given by their team leader Precious Mashaba at the Hatfield was just uncalled for.(i was told I'm not the card holder so why m I the one calling?)I contacted the call center in disarray , spoke to Debbie and Matsedi who were both helpful,promised the query was escalated to the branch and they would contact me back shortly.I still haven't been given feedback regarding the petrol query and not expecting any call back from anyone as they just promise and not deliver!I will never recommend this car rental to anyone,