Creating the bond cost 0.5 BTC (I also got charged an extra 0.5 BTC on some operation, not sure exactly which ... I'd really want to see a charge history feature in GLBSE)
Have you seen
https://glbse.com/fees.html? It doesn't list any other 0.5 BTC fees. Isn't there someone you could contact about that? Doesn't seem like double-fees would be something any startup would want to have potentially driving away customers/users.
Sure, if you think you've been charged twice then please tell me (it has happened, there is an obscure bug in the system, and telling me gets you you're btc back and helps me find it).
Yeah, I believe I got charged twice. All I did was create a bond (0.5 BTC) and create the ticker symbol (which I believe is free).