I looked back on your initial post and opened the file expecting to see a PCN, but it is a Notice to Owner.
So when you submitted representations, were these against the PCN you found on the car, or against the Notice to Owner ?
Reason I'm asking is if your reps were against the PCN, and you then got that NtO, and ignored it, thinking your previous reps were OK for the NtO, you have lost all possibility of getting the CC reverted.