The video shows your car turning right into the street concerned.
This is their sole evidence of the contravention, but doesn't show you passing a No Right Turn sign. However, this is no bar to them enforcing the PCN, unless you can prove that the signs were not present, or they were damaged or not seen due to obscuration (tree foliage etc). However, assuming the GSV July 2024 view is still the same today, you'll find it difficult to refute the PCN IMHO.
This does not mean the matter is yet closed, because the enforcing council must manage the enforcement process such that their duties laid down in the applicable Act and associated regulations are adhered to. So wait a bit to see if anybody suggests such an approach, but don't miss any deadlines on the PCN.