Bad customers service

I was there last week Thursday to do my driver's eye test unfortunately I forgot my glasses and the guy that was assisting me said u needed to have the glasses with me, so I said okay that fine I will come on weekend..

Saturday morning I called to make the appointment the lady(I never got her name) that helped said they are fully booked there's no availability, I said okay.. I went to the site there is an appointment available for 4pm so I made the appointment.. Around 2o'clock I called in to tell them am gonna be late by 15minutes to my appointment and then Phili told told me that I can't come so I asked they don't do driver's eye test on the weekend she said we do if u come u gonna pay 500, I said but it's 100, she then said they don't have the certificates so if I want to come I must come but I will pay 500.

To me her approach wasn't very professional she could have said "it's not problem I can still come 15minutes later to my appointment but unfortunately they don't have the certificate at the moment they only going to have next week Monday if I would I can move my appointment to next week or I can come in on Saturday and collect my certificate anytime when am available" not for her to tell me if I want to come I must come but I will pay 500, it's not my fault they didn't have the certificate.. So Phili and first lady I spoke to where not helpful more especially Phili she was very rude.. My driver's is expiring soon I needed to sort that out, it was my first time with Specsavers I really thought you guys had the best service guess I was wrong...