OP, we do need to know exactly where the car was parked on High Road, Woodford Green, so please post-up a GSV view telling us exactly where.
You have shown a record of payment being made and the end-of-session time is well after the PCN time stated on the NtO. The location on the PbP app is the same as on the NtO. So where is the problem ? Well, is the reg number for the vehicle correctly entered. (a 'O' letter, instead of a 0 zero for instance).