Very easy to get a job as a telephonist
I know that criticising this kind of fluff is like shooting fish in a barrel, but I think it was a bit more difficult than just asking if the job's still open, then turning up.
My mum left school in 1941 and went to work at the telephone exchange in Netley, Hampshire. She worked as a telephonist, on the Post Office counter, and delivered telegrams (often bad news, being wartime). In addition, the Post Office was in the same shop as the chemist's, so she had to do prescriptions as well! Not bad for a girl of 14! She had to deliver telegrams to the Royal Military Hospital, which the US Army ran in the run-up to D-Day. The Yanks insisted she was cleared for security before they would let her into the site. She once joked that there's probably a file on her in the Pentagon basement! She's 87 now, and often talks about the war.