Hi Stuart,

On Wed, Jul 2, 2014 at 7:09 AM, stuart prior <stuart.prior@wikimedia.org.uk> wrote:

1. Hackathon only-tickets designed primarily for those that couldn't register until the Paypal site was up, but then missed the first round of conference + hackathon tickets.

there seems to be no way to use a promotional code for those, even though the full hackathon + conference ticket is free with a promotional code.