[darren]

I had the same problem when I bought my car, the previous owner never sent back the green form. He did, however, give me the tax renewal form as it was about to expire when I bought it, which the post office were happy with.
After a few months I realised no log book had arrived and so I spoke to the DVLA, who basically said "tough paid the £19".

The worst of it is that I know the previous owner, which makes it even more annoying.

This new rule is stupid and I can see in this thread that others have had problems with it, they make it ridiculously difficult to own a car legally.