This seems to be happening to some, but not everyone. I've heard of some players getting theirs instantly, and some (Like me) not receiving theirs at all. It's been about 8+ hours since I purchased my $50 worth of AC, and nothing has arrived yet. I hope this is just a bug, and hopefully posting here will get it some attention.
I have put in a ticket for this as well, and as of now haven't heard anything.
Maybe someone somewhere has successfully figured out said situation?
(I'm on PC too.)