Poor customer service

I went to Sasol garage on the 18/10/15 to fill up my car as I'm an Absa Bank customer and Absa encourage it's customers to make us of Sasol as you earn bonus points after the guy filled my car with a full tank which I budgeted for a week he then swiped my card and the transaction was decline on his speedpoint but showed deducted from my phone he then told me that they always have this problem because I showed him the confirmation payment he then took my card number and car registration number and told me I must come back to pay the money as it will be reversed which it was reversed the following day and I had to drive from Alberton using my weekly budgeted petrol to pay sasol and I feel that if Sasol knew that they've been having problems with their speedpoint they should have rectified the problem now I've waisted my petrol due to their fault and demands that it should be replaced as they are not proactive in running their business