Poor Services

On the 25th of August 2021 i went to visit Spec savers in Alberton Mall for reading glasses using Imperial Med medical Aid .My eyes were tested which went well and i was advised to choose a frame which i did .I was advised my medical cover me up to a total amount of R1300.00 out of the amount will pay 85% ,member liable for 15% and the maximum cover amount for frame is R400.00 which i had no problem with .I therefore choose a frame for R1900.00 .The total amount calculated for everything came to +-R2900 .I was told medical Aid will pay +-R1200 and i will be liable for +-R1700 i therefore made down payment of R500.00 which means i will be left with a balance +-R700.00 .To my surprised i have now been informed balance is +-R1700 different from what was explained when i made down payment .My question to lady was how much was the total cost because understanding is that total cost was +-R2900 ,the lady responded by saying the total cost is in fact +_R6000 ?2nd question was what was the discounted amount since i came during the winter promo discount ?Why was this not explained to me from the start ,does this mean eye testing only cost R4000-00 ?I wouldn't mind paying provided this was explained properly to me to understand the kind of agreement i was entering into . Customer name :Mr SM Mokotong Order :SSAC-26F3EP Cell no:***