Naughty and *****elet

On Wednesday 2 September 2015 I stopped at the garage at 7 am to fill up my vehicle with diesel. I am a regular customer and asked the attendant to fill up. As usual I start to complete my log book and when I looked up at the pump I realised the diesel price is the same as the previous time. The price came down the previous night but the management failed to adjust the price. The attendant also noticed the price before me and went to the office to enquire. When I asked him what is going on, he says he stopped the pump when realising the incorrect price. I paid for the approx. 40 litre and request the manager to call me back by writing a contact number on the payslip. To date no one called, explained, apology or offer a refund. How many other customers are caught the same way? It is clearly an ******** action and the garage need to close as they swindle money out of unsuspecting customers