In 2010 Mr BM sorned his vehicle. Now I am absolutely SURE he sorned this vehicle - mainly because I nagged him and nagged him until it was done and then felt a huge sigh of relief because we wouldn't get fined.
He has just tried to tax said vehicle and the DVLA online system has said there is no record of it being SORNED. I am fairly sure he will have done it online. What would the DVLA have sent him on notification of a SORN so I know what I am looking for?
I find it unusual that they now say it wasnt SORNED because we haven't had a single letter in the last 4 years saying "Tax your car or else". Nor have he had the tax disc reminder V11.
Until December 2013 you had to SORN a vehicle annually. After that date SORNs became indefinite. I'm not entirely sure but I would guess that in 2011 your vehicle became unSORNed and so it still is now.