Today I contacted my bank who informed they had done no such thing, so I looked on the dvla site and checked my tax. All taxed, but I noticed they claimed a new v5c had been issued on 10/10/20....the date of the email
Heart rate rising, I phoned them and eventually got through to a real person and explained my actions.
After checking he confirmed I was still the R/K and asked if I had recently declared it as 'historic'. I told him No...Well you must have, because that is why a new V5 has been issued
A bit of to and froing convinced him I had not applied for this change, so his answer was"well there are no negatives here, you will get a refund on your tax, and do not need to tax or mot it"
That was not the point I was making, so I'll need to keep my eye on this
A pile on contemporaneous notes have been made and saved