Question about back-orders on amiami

What would happen if you ordered a back-order item around the end of the month (for example, right now Oct 28) and they send you the "we got it" message the next month? (say Nov 2) Will you be able to merge it with your November order?

I'm on vacation until Nov 25th so I can't have any packages showing up until then, but this figure I've got my eye on is selling out fast. Thanks for any help.