I was recently caught out when visiting Bristol as part of my path went through a slice of the CAZ I was unaware of. I know I should have checked before hand, now I know better, but I live in the country so these restrictions are not typical for me, and my car has been compliant at other locations I have visited (and normally google maps is reliable in warning me...).
While trying to find information about this PCN I came across some posts (e.g.
this and
this) from a couple years ago, which argue that it is not lawful for the PCN to ask for both a penalty charge AND the daily CAZ charge at once, and this can be appealed for a dismissal. However, I could not find anything newer, and I was hoping someone could clarify if this is still worth appealing, and whether there are more up to date points/cases I should refer to. Also,
this page states they can ask for the daily charge "in some cases".
PCN front:

PCN rear: