@TMOCONTRACTLAW firstly please re-post the PCN with the PCN number and number plate visible.
Secondly please call TFL first thing in the morning on 0343 222 3333 and ask for the video, they will send you a DVD in the post and put the penalty on hold while you wait. The hold only lasts a couple of weeks so put a reminder in your calendar to chase this up if you've not received the video after 14 days.
Whether you have received the video or not, come hell or high water you must make representations before midnight on 14 July, regardless of what promises TFL might have made to keep the matter on hold.
Also please give us a full narrative of events: when did you first stop here, why did you stop, what were you doing etc. If you were loading bulky shopping, were these pre-ordered goods?
Lastly the traffic order is
The GLA Roads and GLA Side Roads (Camden) Red Route Consolidation Traffic Order 2007, the relevant entry is item 9 on page 60:
A400 CAMDEN HIGH STREET, the north-east side from a point 75 metres south-east of the extended common boundary of Nos. 86 and 88 Camden High Street for a distance of 29 metres in a south-easterly direction
The bay used to be incorrectly marked up until July 2021, but the markings repainted since are correct and match the traffic order as far as I can work out.