Ok so I own a copy of the first decade, bought new from Play.com a couple of years ago, I'm trying to play online with a friend and this site is telling me my serial is invalid, I have tried with dashes and without, both dont work, I can prove I own it with an image here with my forum name on a piece of paper also. I also have a clear photo of my serial so I can further prove it is legit.
I have a registered RA2 serial here and that works fine, user: lego88