Gondal Citgo

Review: I went into the store to prepay as the lcd screen on the pump was broken, I paid for $60 however the pump did not stop so I continued till $80. I then went into the store to pay the difference where I paid $20 in cash however the attendant ran my card for $80. I returned to the store within 5 minutes and the attendant returned my $20 and informed me he would credit my card $60. I asked him to sign the receipt which he did. I have emailed the manager-owner twice and informed him I live out of state and was visiting my family. I have also submitted a complaint with [redacted] corporate and have not received an answer regarding my complaint. I will now be completing a cardholder statement of dispute with my credit card company.Desired Settlement: Refund of $60 for payment that I was overcharged.