Thanks for the reply. I do have all my other documentation, just not sure that I have exactly 10 pieces of mail from each year. Actually it would need to cover 3 years as we were married in 2003 so I would need mail from 2003, 2004, and 2005...or is it 2003-2004 = 1st year, 2004-2005 = 2nd year? (I am thinking way too much about this now).
I am glad to hear that your application is checked *before* you pay as I would be in tears if I had to pay out another £500 at a later date just because I was short 1 or 2 pieces of mail this time around.
I had an idea. Driving licenses list your address and are mailed to you, so I wonder if that would count as *mail*. Same goes for V5 car registration docs, they have name, address and date of issuance. If it comes down to it, I might have to bring those along and play they "silly me, I thought it was mail" game.