I like the "we asked the VCA if we were certificated and they said 'yes' "
VCA have answered that question quite truthfully in saying 'yes' because WCC do indeed have a certificate for camera model xxxx.
The question that should have been asked is "are we certificated to use camera model xxxxA for parking enforcement purposes?" Obviously the answer to that is 'no'.
Amazing what you can do with the English Language innit?