"Late yesterday, July 13, a temporary programming error at Visa Debit Processing Services, caused some transactions to be inaccurately posted to a small number of Visa prepaid accounts," a statement issued on Tuesday said. "The technical glitch, which impacted fewer than 13,000 Visa prepaid transactions
So 13,000 people each got hit with a $13Q bill.
http://www.theregister.co.uk/2009/07...sa_overcharge/