"Trying to get an appointment at gastroenterology dept"

My GP referred me to this department. I received a Choose & Book your appointment (20-05-15) only to find out it's not possible to phone or go online to book an appointment. When you contact the department you are told a doctor will decide when to give an appointment.

I have since had two reminders from Choose & Book service to make the appointment. But no contact from the actual department about getting an appointment.

It's now 30-05-15, what a shambolic service.