I've recently been battling the DVLA and collection agent about a car I sold in 2015. When sold, I filled out the V5C, had the buyer fill out their part and sign a receipt of sale. It was all addressed with the new owner's details. Sent all that off to DVLA and heard nothing until February 2017. I was contacted by a collection agency, so sent them all the same documents which I had copied and thought that was that. In September 2017 I got another demand from another collection agent, so sent them the details as well. I contacted the DVLA and sent them the copies again. No I've got a letter back still insisting that I pay £80. Where do I stand? I'm not going to pay.