Tips on fixing up a lighter?

That's a nice Cigar Aficionado lighter. I took a look at your image gallery, but the source of the leak is still a little unclear. Is the leak from the side of the filling valve, the ring around the valve that unscrews, or from a crack in the case? It looks like the spot in the picture is just a chip in the side of the case that holds the bottom insert. You can put a drop of water on the spot to see exactly where it bubbles from.