I got a set of two back-to-back hospital appointments for a date I absolutely couldnt make (I was in London for a pre-booked event).
Called the main hospital, got directed to one department, "we cant change it because they must match, you'll need to phone the other one".
Called the other one "we cant change it because they have to match, phone the other one".
Called the first one again, was passed among three departments before finally having someone tell me they'd sort it. Ok, great, we're done.
Then I got a reminder call about my appointment on the original date. Noooo, thats been changed. "Oh, try phoning the consultants PA on x number, but shes gone home now so call tomorrow".
Called her the next day, ok she'll sort it, great.
Then a week later, got a reminder call about the other one in the pair, original date. Noooo, thats been changed.
Call consultants PA again, she claims to know nothing about it but will change it.
Two days after the original appointment date, I got a very snooty letter about my missed appointments, telling me to contact my GPs surgery and they "may" resubmit the request.
I think I'm more annoyed about the appointment slots being unavailable for other patients, I couldnt have done anything more than I did and they were still denied to other waiting people.