<div id="doc-original-text" >Don't you just hate it when you're heading through the ticket barriers on the Tube and it doesn't let you through? Find out what those confusing numeric codes mean at the Oyster card gates in TfL or National Rail stations.<p>Status codes obtained from sources including <a href="http://www.google.com/url?q=http://www.cryptart.com/oyster/&usg=AFQjCNGTsZH_XGisWazQgL1208yC6FluVQ" target="_blank">http://www.cryptart.com/oyster/</a></div>