Today between 6:30 lamband 6:45am I went to Arco to get gas. My gas mileage did not change. The gas machine showed that my gas was received but I did not receive gas. I went inside to let the teller know the machine SAYS that I received gas, but my vehicle did not get any. He was unable to assist. A week before at this same gas station it took my an overwhelmingly long time to get a few dollars worth of gas. I had to wait about 10 minutes and missed my train to work . When I went to tell the teller the gas was barely pumping he said he knows but sometimes it does that and was unable to offer assistance.