Its not odd for some companies to charge at the time of placing your order instead of when the product ships. If were talking about a online retailer which sells all kinds of stuff, that would seem a bit weird but when your talking about a single company that runs a somewhat tight profit margin, and has a reputation like axiom i dont see a problem.

I recently ordered a tubed preamp kit from bottlehead. (theyre a company) they charge the orders as soon as they come in and my kit wont ship for another week or two, and i ordered nearly 2 weeks ago. But they run a very tight profit margin and practically build the kits to order as they only order enough parts as they need at a time.