FURTHER UPDATE: I sent a polite but firm letter requesting lots of information as outlined in the advice on the site. This was "crossed in the post" with a second letter from them acusing us of not responding in good time. I sent another firm letter reiterating our requests for information and reminding them it had taken FOUR YEARS for them to contact us, and their comments were a bit rich in light of this. Their third letter is lovely - a promise to consult with their client (AN) regarding the documentation requested, and that they will contact us "soon". All threats have disappeared. Their tone could not be more of a contrast with that of their previous letters. I'm hopeful they're actually gonna drop it altogether, though their politeness is actually more scary than their threats !!!!! Will keep you all informed.(posted 7652 days ago)Andy