I've had problems with their missing post just trying to book exams.I applied for resits and presumed they were weighed down with applicants so were slow getting confirmation out on time.After e-mailing and then phoning them (yes they were helpful and friendly when i got to speak to a human),i was told that confirmation had been sent to me 14 days earlier,oh no it hadn't.By this time i deemed it too late to be ready for them so re-scheduled.It cost me £21 to do this which i feel is a little harsh considering it was their postage/admin system at fault.In the larger scheme of things,£21 is nothing,but these things irritate.
PP