Poor customer service

I filled my tank at the BP Bapsfontein Crn Pretoria and dalmas road and when I paid the amount was deducted twice from my account. I then explained to the petrol attendant who insisted it did not even after I showed him the 2 smses on my phone. He then went to call the rude lady who gave me the worst attitude telling me that the money only went off once, she wouldn't even look at my message. I then asked what I need to do if it went off twice, I was told to come back but I told them I'm from the free state and asked to fax the statement. I was then asked how they will know if it's real. When I left I told them that the money better be reversed and that colored rude lady shouted \whatever!"As I drove off. This was appalling service to a customer. I never see myself using BP service stations if this is not resolved. Very disappointed"""