Monday at this Shell station is normally 10 cents off per gallon of diesel. I had accumulated more than 200 points on my Giant Card which should give me an extra 20 cents off per gallon. I had a gift card with $7 remaining and used it first expecting to be able to continue my purchase with my credit card. When the pump stopped, I attempted to insert my credit card; nothing happened. I walked into the clerk and tried to explain. He kept telling me to go back out and hang up the nozzle; I left my card with him. He had said the first time, he... read full review »