Worst client service ever

I had my eyes tested at Spec Savers Centurion Mall. For the second time my glasses were too strong. I went back, retested and was then told to walk around in the mall for 20 minutes because they had my lenses "In stock". I questioned this but they assured me they would replace my lenses with the new prescription. When I went back and put my "new" glasses on I told them it looked exactly the same. They said I just needed to get used to the new prescription. Strange thing is that I have been wearing glasses since age 13 and my new glasses always had to be sent away for at least 2 weeks to have the lenses cut according to my frame and prescription. Especially since I have astigmatism. I did not go back again but every time I see my brand new R4500 glasses on my night stand that I can't wear the audacity just grates my nerves. BTW my mother worked for optometrists for 21 years and even she said she had never heard of having lenses, with the correct prescription, and cut correctly according to the frame "in stock."