Unwanted service

My little girl visited Dr Moolla a dentist in Thembani,Khayelitsha, on the 30th March 2015 to have her 2 rotten mollars removed. I had called in the day before inquiring about the medical aid rates which was said to be R150 each excluding consultation. To my suprise yesterday upon receiving my statement from the medical aid i was billed R811.00. I called the dentist to investigate and he told me that he had removed 3 (of which one was falling off already),polished her teeth and used fluoride and that is billed for. This was neither requested nor authorized and definitely not discussed with me, but I was expected to pay for it. When i complained to him about how unhappy i was about this he told me there is nothing he can do except to apologise that they did not explain it and that its not my money but the medical aid that he has claimed from regardless of the fact that i pay for the medical aid. He did a good job with removing teeth as it was pain free for the child however i feel robbed of my medical savings and he refuses to take responsibility and reverse the billing...His behaviour was utterly unprofessional and disgusting