Admiral Petroleum review: Gas

My fiance went to admiral in Eaton Rapids to pump $20 in gas, prepaid inside, got sidetracked when he walked out and forgot to pump it into his truck. He tried calling several times for them to shut down the pump until he could back there with no answer. He was picking kids up from school and went back as quickly as he could to be told the next person to use that pump got his gas and there wasn't anything they were going to do about it. Not very happy with this situation ?