Well no you didn't, you said:
"If there are a lot of returns involved over a long period, this might not go entirely smoothly but the best approach is definitely to submit the outstanding returns. And submit them to Southend, not to the bailiffs. But have copies available to show the bailiffs that they've been submitted, together with your recalculation of the amounts properly due".
David doesn't have the Returns or the information to put on them. The only way to get get duplicate returns will be to phone the Inspector.
Most VAT inspectors I've known are very nice people and striking up a rapport with them is a "must have". The bailiffs are under the control of a local solicitor aren't they? The local solicitor under the control of a Local Inspector? And the debt is unconnected to the VAT owed? So how does submitting 12 returns to Southend stop the bailiffs taking away your tables and chairs?