Chevron

I used my debit card at the pump at Wally's twice in one day. When the pump was going slow i stopped at 44 cents and restarted the pump then i swiped my card again and pumped $19.51. when I checked my bank statement online i discovered Wally's charged me $75.00 twice. one for each transaction. then when I returned to asked about it they tried to say it's not their fault i must have forgot to hit cancel. Come on now how could someone pump $75 between the time that I pumped .44 cents and $19.51 when I was the one pumping. Everyone needs to stop using debit at this place because they are probably doing this to many people.