You will only get the email when the ticket (number) is issued. Does checkmytrip.com show the ticket number yet? If not, then the ticket has not been issued (only a reservation made). No doubt the job is queued in the QF system and the ticket will be issued in due course. If you ask them to do it "now", I'm sure that'll happen.

Exactly the same thing happened to me with a BKK-SYD redemption booking (confirmed). I got an email from QF BKK asking for me to front up in BKK with my cc to enable payment (yeah - and I'm in SYD!). I rang QF in Oz and they said its all OK and minutes later the payment went through, ticket number issued and email with ticket number received. No stress, no problems.