Well, PlusNet still haven't been able to provide me with a MAC Key.
They finally replied to my repeated queries for an update stating it takes 7 days to provide a MAC Key. Considering the request went in on the 24th of July, I'd say it has been long enough.
Demon patiently await my MAC Key so I can move to their cheaper, non-capped service. The icing on the cake, of course, is that PlusNet were down again yesterday for most of the day due to a power outage in London's Telehouse in the Docklands.
Puh-lease. Have these people not heard of DR? Geographically disperse DNS, RADIUS servers, etc?
If we tried to run a nation-wide ISP without DR and something like this happened, heads would roll.