Just got my copy this morning :-)
I can't see how it can be over-ordering because I ordered mine in February. If the early people got theirs on time, but the late comers got theirs later it would make more sense.
If you don't get a reply to your e-mail from Play, I'd suggest phoning. E-mails are not guaranteed delivery and ma get chucked out as SPAM.
I'm off to install and enjoy :-)