Have had dealings with this guy,found him very helpfull, well worth a phone call,
Be advised that you will still need to go through your unit, however if you can go to them armed with knowledge and save them the legwork it provoke a different respose.
Good luck and remember, "The door to success is marked PUSH!"
Not just a problem for officers, I was in a similar situation and was being told there was no vacancies etc etc! So i sent an email to the PSAO which without being a shitogram made everthing a bit more formal, The key phrase at the bottom was: "please can any correspondence in relation to this e-mail be in either written or e-mail format so as to be recordable"
2 Weeks later i was at chilwell
In short put it writing and make sure they know that your keeping a reccord of everything.