[churchman phil]

So as this is done every 10 years I take it Mr D you ain't filled one out before?? If you have then why whinge about it now??
There are no names on these things, just the address of the household. You fill in the names of those who live there at that time from 1 day old to 121 years old - everybody. You lie you're in trouble.
As has already been said above it is the law and you HAVE to fill it in. Like you said, your details are held by various organisations already so what is the problem??
I would also have presumed the second home question would be for 30 consecutive days??