Free Traffic Legal Advice

Sorry, but you've redacted far too much on the PCN.It is only necessary to redact name and address. We need car reg and PCN number to see the video, (assuming W & M council put it online). PLease read this and update your thread accordingly: -
https://www.ftla.uk/civil-penalty-charge-notices-(councils-tfl-and-so-on)/read-this-first-before-posting-your-case!-this-section-is-for-council-tfl-dartme/

The photos on your PCN show that you seem to have entered Oxford Road East, and passed this sign barring your entry:-
https://maps.app.goo.gl/eDbyxGCiwZe6NBNc8

The video shows you driving down the restricted street, (Oxford Road East), hence the PCN. Did you not notice the sign barring your entry ?

So from your narrative, it seems you drove into the start of Oxford Road East, to wait for a car parked behind you to move off and make a space for you, but another car arrived and stopped you parking and also reversing out. So you then just drove off down Oxford Street East and hence got a PCN for driving into a restricted street as per the sign you passed. Better if you had got out of the car and asked the driver of the vehicle blocking you to let you back out. It is double-yellow lines there so I assume you have a Blue Badge.

Here is a GSV view from 2023, the restriction sign for Oxford Road East is clear as are the double-yellow lines:-
https://maps.app.goo.gl/PnTyfMn8NJn6ULt88

It was not me driving, but did not see the sign as we were trying to reverse into where the other car came from on the left which is where we were looking.

When he appeared to pull up behind us the driver saw we were going to be blocked in so drove forward, then the other car changed direction as they must have seen the sign.

But your's is the red car driving off down Oxford Road East, isn't it. Were you actually in the car at the time ?