Even earlier than that I think. Obviously the next step after they had stopped you going into admin as soon as you are relegated would have been for teams to start doing it just before, when relegation was odds-on. So they brought the deadline right forward, to something like March.
Incidentally, we did get our books signed off on a going-concern basis in the end didn't we? It would look a bit odd if the auditors approved that (which basically means we aren't in danger of going out of business in the next accounting period), and then we went into voluntary administration a couple of months later......