Marathon gas

I would give zero Stars if I could.. I went there last Thursday to buy gas and I bought a beer as well and paid with my credit card. The attendant accidentally put my gas on a pump that was diesel fuel only. After a few minutes I realized that pump never came on so I went back inside and he told me that he put it on the wrong pump and I should move to the next pump over which I did. 10 minutes later the pump still didn't turn on so I went back inside, the statement to me was the diesel pump was frozen so he couldn't transfer the amount that I paid for gas from that pump to the one that I was on so I would have to pay for my gas a second time and then come back the next day if the funds had not gone back to my car and then gave me a receipt that only showed the beer that I purchased. when I said this was unacceptable and I wanted a refund he refused... When I told him to call his manager he told me he couldn't reach him then I told him I wanted him to call the police he told me I had to call the police myself and he wouldn't do it.. 10 minutes later the police showed up ask him why he couldn't just transfer it or give him a refund then told me since it was below $250 it was a civil matter and it really wasn't anything the police could do if I didn't get the money back the next day I would have to escalate with the police and they would show back up. After the attendant hurt all of this he went and did something in his computer because 10 minutes after the policeman left my money was refunded to my card. It's clear to me that this man runs this type of scam daily stay away from his gas station