Credit Card Machine Question
July 3, 2006 6:46 PM Subscribe
Did my typo on the credit card machine double-charge a customer?
posted by fogster to Work & Money (13 answers total)
At work the other day, I was entering someone's total, and fat-fingered it, entering an extra digit. (The machine is a Tranz 330 or similar.) I realized the mistake right after I hit "Enter" on the machine, but I pressed "Cancel" a fraction of a second later. There's no way the machine was able to dial out and authenticate the card.
It didn't occur to me until later on that that it was possible they'd be charged anyway when we ran a batch at the end of the night. Would they have been charged if I hit "Cancel" before the machine authenticated the card?