I've just spoken to the relevant people in the office.
The initial production of the licence keys should be totally automated, so ensure that your email address is correct when you order, and check your spam folder.
Investigation of missing keys is a manual process.
There is a slight backlog at the moment due to sickness last week, but they are on it. Responses will be sent back from the same store@ / swag@ email address as the codec licence, so again check your spam filter as if the first email got sent to spam then subsequent ones may well do so too.
Software Engineer at Raspberry Pi Trading. Views expressed are still personal views.
I'm not interested in doing contracts for bespoke functionality - please don't ask.