I suggested the OP try here for advice.
As far as I can make out from
https://www.gov.uk/government/publications/vehicle-enforcement-policy/dvla-enforcement-of-vehicle-tax-registration-and-insurance-offenceshttps://www.gov.uk/government/publications/vehicle-enforcement-policy/dvla-enforcement-of-vehicle-tax-registration-and-insurance-offences#wheelclampingThe Out of Court Settlement for having a SORN'd vehicle on the road is £30 + twice the backtax (presumably upto 31 July 24 because you have to tax it today)
As the vehicle is clamped there is a £100 clamp release fee, which I assume (maybe incorrectly) is the alternative to the £30 OOCS.
There is also the £160 refundable surety as the vehicle has no MOT and cannot be taxed before unclamping.
The OP says the release fee is £280, so there is an extra £20 which must be twice the backtax??
I suggested they let the DVLA remove the vehicle and then sign it away in lieu of fees, which should leave the DVLA seeking their pound of flesh at twice the backtax, plus no doubt, the OOCS of £30, so the estate would only be liable for £50 rather than the current £280.
However, if I am wrong, the impound release fee is £200, plus £21 a day, plus the £160 surety and that extra £20, so £380 +£21 a day increasing.
So the question is-
If the vehicle isn't collected within 14 days do they still pursue the keeper for the impound & storage fees, or are they cancelled by the disposal of the vehicle? (If they are "release fees" then surely if you don't want it/didn't have it released you don't
have to pay them?)
But the "Using a SORN'd vehicle on the road" offence is complete and would be outstanding, unless the DVLA waive it due to the death of the RK.