"Can't get reply from hospital."

I was due to get surgery in the spring of this year but have heard nothing from the hospital (urology dept). I changed address in April and to make sure they knew of this I've been calling surgeons secretary but each time i phone an auto message tells me to leave chi number d.o.b. which I've done 5 times now and still my doctors secretary has not called back. Spring has come and gone and I still don't know what's going on, I believe it's a disgrace that they can leave me hanging on like this. I have an appointment with C.A.B to see how I go from here, this is no way to treat people.