Sun Power Gas & Auto Repair

I was there today (4/23/2015) at 7:30 pm and had 3/4 in my tank and I told them to fill my car. I didnt noticed the pump was already at $15.00 from the costumer before. They charged me the 15 dollars and came home. I live 4 blocks away from the gas station. At 9:40 pm I get out of my house and noticed my tank never got filled. I go to the gas station and let them know and they say is impossible. That they counted the money and there was no extra money. They asked if i paid cash and I did so they said with a receive is impossible to check. But of course if I had a card receipt they would have put the gas. They robbed my money and did not accept it. I'm never going back to this place and I would not recommend anyone to go there.