Firstly thanks for all your help.
This is the reps which doesn’t mention second PCN:
Dear City of London, The contravention did not occur, as the signage as a whole is inadequate under Regulation 18. The evidence shows that only a single sign is positioned on the left-hand side on Old Broad Street. The Department for Transport guidance recommends that restrictions of this nature be signed on both sides of the carriageway to ensure visibility. Kind Regards
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Lastly where would the best place to contact CoL? The council, PCN department or?
I would think the same place you submitted your reps. YOu should ask they pass your request on if they haven't the necessary authority to deal with it.
