Dissapointed

i'm very dissapointed with regards to your service. I went to your branch in Bellville 2 month ago as i kept receiving message that i'm due for my eye test and classes. As i have been going there in 2017 and received good service, i decided to go there again.. when i went i provided my medical details and advise that i will be doing the standard test which i previously did.. i did the eye test and when i had to choose the frames, was than advised that key care plus does not cover the coating that comes on the stand frames and i will have to pay in over R300. i decided to use than to use a different optical and was than advised by them that i can come and i don't have to pay for a coating on a standard frame as my medical aid will pay, when i called my medical aid i was advised that because you did the test and stuff i now only have over R300 left which now negatively affect me, as i will have to pay extra now to the other optical as you used half of my benefits.. This is not fair is you were supposed to inform the client/me that if i do take the standard i will have to pay for the coating and i would have made an informed decision to see if i want it or not and now i have to pay for someone you should inform your customers.. i will take this further to the HPCSA as i feel that i have been misled by the information and information was not provided to me in the beginning of the service knowing that i'm on a discovery key care plus medical aid.