"Still waiting for appointment"

At the end of a visit to see a consultant in Clinic D (waited for about 2 hrs!) on Friday, 29th May 2015, I was informed that a further appointment at the same clinic was necessary. This next visit would be in six weeks’ time and I would receive a date and time. After a few weeks, I contacted the Outpatients Appointment Office only to be advised to ring the direct phone number for the consultant's secretary and try to arrange an appointment. However, this was also unsuccessful as the call was transferred back to the reception desk at Clinic D, and the person there apparently does not have access to the appointments calendar. I have now been waiting for approximately six weeks.