I parked for an hour in a private car park monitored by “P” Smart Parking. Having paid for a ticket (0.80p) it would appear that I over stayed my welcome by 15 minutes. They have now sent me a Parking Charge Notice for £100 reduced to £60 if paid within 15 days. Unfortunately, having been away on holiday for the past month, the 15 days has passed. Anybody had dealings with these extortionists before. Any advice appreciated.