"Appointment system failings"

I visited the hospital today with my wife for an outpatient appointment. We thought that the appointment had been cancelled, however we received a text message reminder to attend the appointment, so I took time off work and attended the appointment with my wife who is disabled and has mobility problems. After a long wait to speak to the reception in the outpatient department we found that the appointment had indeed been cancelled. The text message system was not updated with the new information. This system needs to be sorted out to stop wasting peoples time and money. It seems to be difficult to get through to the appointments people.