In the UK: To get the free trial contact lenses, the optician (who wore a white coat!) did my eye test and kept increasing the power until my prescription quali

In the UK: To get the free trial contact lenses, the optician (who wore a white coat!) did my eye test and kept increasing the power until my prescription qualified as legally blind, despite me saying I have astigmatism. I never came back to collect the contact lenses obviously. Went to my usual optometrist when I was back home in Malaysia 6 months later and surprise, surprise my prescription has not changed for the past 2 years!