The location stated on the PCN is wrong, draft reps:
Dear London Borough of Southwark,
The alleged contravention did not occur. Your CCTV footage show my vehicle never reached the junction of Rye Lane and Copeland Road, my vehicle was at the junction of Rye Lane with Sternhall Lane. The junction with Copeland Road isn't shown on the CCTV and owing to its position, it would be impossible for the CCTV camera to even see the junction between Rye Lane and Copeland Road.
In light of the above the penalty charge must be cancelled.
Yours faithfully,
The council will reject this, but it's obviously a viable argument for the tribunal.