Cheap is expensive - Never again!

I went in for an eye test and replacement of my sunglasses to transition lenses at the Randburg branch. I told the receptionist Pinki and the optometrist on duty that I need my lenses to be replaced and for them to transition given that they were previously sunglasses. I requested Pinki to provide a breakdown of the quote before proceeding. Instead of providing a proper breakdown, Pinki sent an email advising the total costs. I asked her to break it down for me, which she did at a high level on email. I accepted the quote as during our discussion I explicitly told her I need transition lenses and an option of blue tint which I communicated and assumed the vague email incorporated the request. I left my specs and paid R3650 for my lenses. When I went to collect my specs, Pinki nor the optometrist know about my request and replaced my sunglasses to normal specs and now have no recollection of what I asked for. The optometrist failed to write down my request and Pinki is telling me that I forgot to tell the optometrist what I wanted. I am now asked to pay extra to get transition lenses as according to them, they did their job. I am not willing to pay extra and want to be refunded and original specs returned as they failed to provide what I requested for.