I arrived for my appointment with seconds to spare, this ws due to a traffic problem involving the police and a car chase....we all had to pull over and wait a while.....I really needed the toilet when I got there but they said no......so I had to go and find a toilet before I had my appointment making me even later.....so I was stressed....during the appointment I needed the toilet again...probably because I'd rushed it the first time and not properly emptied my bladder......at the final stage where I had to choose new specs I was unable to concentrate as I was getting desperate for the toilet.....the assistant told me to go over Starbucks...saying that's were she goes to the loo...I didn't go back to chose my new specs and I won't be going back either ....for goodness sake how can they refuse the use of the toilet....I was desperate....I've used that branch for 15 years.