Oh dear, you do seem to be in a right mess ! It is OK to ignore a Charge Certificate if you are au fait with the enforcement process, but it's clear you weren't. What a pity you didn't come on here earlier !
In the statutory enforcement process, after sending out the CC, and getting no response to it, (payment), the council can then register the debt at the Traffic Enforcement Centre, (a form of county court, but which covers the whole of England and Wales). Once registered, the council
must send you an Order for Recovery. This again invites payment, but the TEC registration fee of £9 is added to the CC amount. At this point, you can either pay up or submit a Witness Statement, or a Statutory Declaration, which one depends on what the PCN was issued for. Time is again allowed for payment or for submission of a declaration. If there is no response to the OfR, the council instruct bailiffs to collect the debt and they then add on their own statutory fees.
So the key question to you is - did you receive the Order for Recovery ? You haven't mention it at all, yet you did get the Charge Certificate. Is the name and address on the CC correct ?
FYI, the only avenue open to you now, is to submit an Out-of-Time Statutory Declaration that you didn't receive the PCN. You would need to state a reason for non-receipt and it seems that you cannot explain this because your V5 for the vehicle has the correct name and address on it. (is this true ? if it isn't you need to tell us a whole lot more)
You can download the relevant forms here: -
https://www.gov.uk/government/collections/traffic-enforcement-centre-forms