Found this on the Mail where people are being hit with default CCJ even for a penny they know nothing about until the bailiff knocks or they are refused credit. It seems Crapita AKA parking Eye are getting default CCJ on alleged debts of a penny, as in o 0.01p.
http://www.dailymail.co.uk/news/article-3784421/Stranger-s-40-parking-ticket-cost-family-new-home.html