Sometimes I have a sixth sense about things.   One such occurance is when parking on a NCP carpark in Shrewsbury.   Low and behold two weeks later I received an prospective invoice stating I had not paid to park.   Luckily I had the foresight to keep the receipt from the machine.   This is clearly a valid ticket reg is valid as is amount paid I had nearly an hour left on ticket too.   Makes you wonder how many others they have had