"Answer the phone!"

I've been trying to call the Oral Surgery department for 2 days with no answer. Last time I was at the hospital, the receptionist would not let me book an appointment at the desk and said one would be send out by post without any consideration at to choosing a date I was available. Now I have an appointment that I can't attend my only option it to take a morning off work to go in person to change my surgery date. How can you run an efficient department when your patients have no way of contacting you?? Judging my the past reviews this is an ongoing problem that has not been solved.