Hi Alexander
Knowledgebase XML and OJP require licences, but if you're referring to the Live Departure Boards APIs and the Push Port, then you can accept the licence online.
I applied for the Incidents XML feed a while ago and it was fairly swift. However, it's an entirely manual process (as was the LDB API licence at one point) but still, waiting three weeks is a bit of a long time even taking in to account annual leave etc.
For the semi-static XML feeds, you will need to provide your IP address and it'll get whitelisted on the CDN provider's side so you can access the feeds without authentication. This is the part that took the longest for me - likely the CDN provider batches up configuration changes rather than doing them in bulk.
I'll see if I can give somebody I know at NRE a nudge and ask them to reply to you.
Cheers,
Peter