"Too long wait after appointment timeand..."

Referred from Specsavers with a PVD. Seen quickly with information on wait at each stage. Clinician noted I was to travel in 2 weeks but recommended another check up before flying. Asked me to book on my way out with reception. At reception was told 'computer says no' to a new appointment before notes were transferred from clinician. Told the time limit was noted and would hear 'shortly. I phoned after 1 week and then again to ask for appointment before flight date 7/11. Flew on 7th despite no check up. Got a txt while abroad with appointment on 26/11! That appointment was then rescheduled by Clinic 14 for 10am on 7/12. Arrived at 9:30 had short eyesight test and the waited 1 hour 45 minutes after which time Waiting Area 2 was full of people complaining about the long waiting time. By this this I had had enough of Clinic 14 and asked reception o delete my name from list which was done with no query as to why or apology. I suspect everyone in the room had the same appointment time so patients could be peeled off at will .