I'm afraid that your failure to update your V5C means it will be mega-difficult, and reading your narrative, probably impossible to get the process reverted, I'm afraid. Sorry if this is not what you wanted to hear. Failure to update a V5C is one of the most common reasons people with bailiffs at their door start a thread on here.
There is, of course, nothing to stop you from submitting an out-of-time Statutory Declaration, one per PCN is required. However all OOT declarations are passed to the enforcing authority, (council or TfL), who can object to them. They invariably do so, at which point TEC reject the declarations. You can request a review by a county court judge, but this costs money : -
- With hearing at your local county court £313
- Without hearing by a district judge £123
These fees are not recoverable.
Stamfordman's advice re contacting bailiffadviceonline is a good one. So why do bailiffs always clamp one's car ? It's because it's normally parked on the street in London, and the Tribunals, Courts and Enforcement Act defines what may be taken control of in Schedule 12 (9): -
9 An enforcement agent may take control of goods only if they are—
(a)on premises that he has power to enter under this Schedule, or
(b)on a highway.
