I had a letter out of the blue today saying I was being fined £100 for not paying insurance on my old D3 that I traded in back in May.
I have received no other letters regarding this and when I bought the car I signed my part of the log book to say that I had sold the vehicle and the sales chap said he would post it away to DVLA together with the confirmation of sale to me of my RRS.

I had the log book through for my RRS a couple of weeks after and thought no more of it, until now of course when this letter dropped on the mat this morning.

I phoned DVLA who said to fill out the form on the back of the letter to declare who bought it and when and post it back, but it says I could still be fined!

Has anyone come across this before? How did you resolve it if it happened to you.

Clearly Guy Salmons must still have my old D3 somewhere as they surely can't sell it on without changing ownership with DVLA can they? 2017 Range Rover Sport Autobiography

I have heard of this before. I think it was actually featured recently on BBC Watchdog. Problem is it states on the V5 that the vehicle remains your responsibility until you inform DVLA. Of course you probably did send the paperwork but they will insist that they didn't get it. You will then have to prove you sent it. I know it's closing the gate after the horse has bolted but, All government depts are so prone to losing stuff I always send important stuff like this Royal Mail Signed For. That way you can prove it was recieved at their office. Perhaps if you have any proof, Receipts etc from the dealer you PX'd the car to, that would be enough to convince DVLA?
Good luck. 2013 Discovery HSE Luxury - 3.0 SDV6 - Santorini Black
2013 Evoque 5 Door Pure Tech SD4 - Orkney Grey with Panoramic Roof (Mrs E's new baby)

GONE - RRS - 3.0 TDV6 HSE - Santorini (2010)
GONE - RRS - 2.7 TDV6 HSE - Java Black (2007)
GONE - Porsche Boxster S - 3.2 - Black

I will send their form back recorded delivery and I have the proof of sale if it goes further. The stealer sent the paperwork but it annoys me that the first letter I receive is a fine! 2017 Range Rover Sport Autobiography

You're assuming it's the DVLA at fault. Who says the salesman sent the necessary to them? The salesman? Would I take a saleman's word over that of the DVLA? Not sure I would, no. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

I didn't risk it when sold my wife's car to a trader, sent forms in myself just to make sure