I will fight it because a) i think the PCN is invalid and b) just fancy the experience.. Useful website www.trafficpenaltytribunal.gov.uk who are allegedly independent and will adjudicate your case for you. Got to wait now for the Notice To Owner letter and then i can make a formal representation which then gives me another 2 months grace. Would be nice to win as i then have a parking place in Liverpool...till they paint yellow line !