This has been very often discussed here, and is a particular problem for international folks such as yourself. They're a very small shop, typically very overloaded with work, and as such, are notorious for being bad about getting to emails. I know those guys very well, have bought multiple basses from them, talk to them at every NAMM show, and even I have problems getting email responses from them.
The usual answer is, call the shop... this is a good way to get a response... but that's the problem for international folks.
Probably the best thing to do is get somebody over here to talk to them on your behalf and just ask them to look for your emails and reply as soon as they can. Angus seems to have the very best access to their shop, but I don't want to volunteer him without his permission, either. If he's uncomfortable doing this, PM me your info and I'll call for you.