Shell

Recently when I used Shell gas gift cards at this station, the pump has stopped 19 cents shy of using up the entire card, for both cards. I called the 800 number on the back of the card and they said it had to have been something specific to the station, and that each card had 19 cents available (which is too little to use toward gas). The clerk knew nothing about it. I now have to go and insist that they give me 19 cents cash back for each card. I don't know why they would cause this to happen, and neither did the Shell representative on the phone. Seems kind of shady to me, at the very least a hassle. Never had that happen before in using these cards for several years.