Free Traffic Legal Advice

"Which address" is up to date with the DVLA? Your drivers license? We don't care about that and neither do the parking firms. What about the V5C? One of the most common mistakes is when drivers change address, they update their drivers licence but forget that the V5C is a completely different requirement.

Anyway, dumb move identifying as the driver. Never mind. You can safely ignore every thing from now on. Debt collectors are powerless to do anything except to try and intimidate the low-hanging fruit on the gullible tree to pay up out of ignorance and fear.

APCOA have never taken anyone to court over a PCN and I seriously doubt you would be the first. Ignore them and eventually they will give up.

...I didn’t realize their drop off was camera based not barrier like any other airport.

Not sure how many other airports you've been to recently but most are now barrier-less and ANPR controlled.

Original PCN probably went to the new owner of your previous car. DRP just did a simple credit reference search and found your address. Advice has not changed. APCOA will not litigate. Debt recovery letters can be safely shredded into hamster bedding. Nothing is going to happen.

If you try and communicate with a useless debt collector, all you are going to do is waste your time and effort, unless you intend to pay them what they are asking for. As long as they have no idea of the drivers identity, there is nothing they can do.