I agree with Penny, I too am I the UK. I think you should definately ring the secretary, it is what I would do. Whenever I ring the Secretary she always gets me an appointment within 2 weeks. At the hospital I have politley refused to see anyone but my usual consultant. I explain that as a patient I am entitled to a continuity of service. It usually works for me.
keep pushing and refuse to be fobbed off.
good luck