On the last video, right at the end, the diversion sign is shown directing traffic into Pierrepoint Road, so this is obviously your main point against the PCN.
I tried to view the video of one of the PCNs but the complete trash that is the Ealing website doesn't work properly.
I suspect it doesn't show the diversion sign.
You need to submit reps against all three PCNs referencing the two others on each representation, and also point out it is impossible to view the video, but you attach photo of the diversion sign. State that a diversion sign must override whatever restrictions are imposed on the road one is diverted along.