I'm in Australia so I can't comment on how they mark packages that go overseas, but I would be wary of ordering Senna while it says Awaiting Stock. It came back into stock for about 2-3 days the other week then sold out again. I don't like your chances of receiving it from an online order.
I'm going to a local JB tomorrow that had a few copies left a couple of months ago. I'll let you know if I can secure one.