Let me guess....You sheared off one of the string locks?
I have a 5 string Bogart in Zebrawood and that's what happened to me. After waiting and waiting for a reply from Bogart and getting nothing (besides their automated "Our English version of the site will be up soon. Please be patient" reply), I decided to make my own. It took me a while and it was a pain the butt to find the metric taps and die, but I did it.
Now here's where my stupidity really shines. I got a brand new set of strings, cut my little makeshift string ferrules out of copper (to slide over the EADG strings so they don't break when the string locks pinch them), and strung it up. I somehow managed to break yet another string lock by over-tightening it. Not wanting to spend all the time to make another string lock, I decided to try the emails to Bogart again...
...After I got a little nasty with them, they finally got back to me and said they sent me a few extras to my address. Weeks went by and I never got them. They don't reply to my emails any more. So, my Bogart has now been unplayable for about 1.5 years!
Let me know what has become of your Bogart.
Thanks
Dan