After much email wrangling and getting nowhere, and time ticking away until what happened last month seemed doomed to repeat itself, and the October course filled up before I got a chance to interview for it, I did the sensible thing. I went to the office in person. Should have done it a lot sooner. Now I have an interview on Friday at 3.
I think sometimes I avoid having to deal with people directly and use email for that purpose. It's a bad habit and I should try to get out of it.