"Waiting time at Hand Therapy."

I had come in for a post surgery follow up at 9. 20am. Having taken half a day off at work, I came in on time and was told to wait. One hour later I decided to ask how long until my turn as I realised it's not definite that I will come back to work on time. Only after I inquired I was then told to wait for another 25 minutes or more. At this stage, I can't help but feel the receptionists could have warned me about the waiting time or informed me that there were only two doctors in - (I overheard this; however I was told later there was only one). I am hoping they come up with a better communication system (maybe via email or text) that my appointment time has been bumped up significantly by an hour and a half.