"Waiting Time For Treatment"

I was told that I would be contacted about my future treatment but I was not contacted so I would like to know why because I feel that my complaint has not been taken seriously. My previous complaint was when I visited the dental hospital which was about 3 years ago and I was told that I would be seen again in 15 months. More than 15 months went past and I did not receive a letter or any other form of contact for another appointment so I contacted the dental hospital to find out what was going on. After I successfully sent an email, I received an appointment. I felt that some of the appointments that I had was a waste of time and they were unnecessary. My main concern is that I was put on the waiting list for treatment and I wanted to know if I am still on the waiting and how long I would have to wait because I do not want a repeat of what happened last time. I was told that I would be contacted to see if I still wanted treatment and I have not been contacted yet. Then I left a review and I was told I would be contacted but I was not and this is why I have had to leave another review. I was hoping that I would be treated by now as I want to get braces as soon as possible.