Doesn't do a damned thing.
I went to bed early, because I had an appointment to see my exercise therapist. I groggily get up, manage to get dressed. Staggered off to get first cup of coffee in the morning. In between sips of coffee, got my hair brushed and braided. Readied by bottle of cold water, and when 8am rolled around, we hit the road.
I get there, and get asked why I am there. I tell the 'receptionist in training' that I have an 8:30am session with Meg. She said no I didn't. Uhh, I have been seeing Meg on Monday and Friday for the past almost 2 months (exception when it was a Wednesday and Friday, because Monday was a holiday.)
Now, I had/have the card with the appointment times and dates, but I put them on my phone and left the card on my desk.
We get shown the door. I found out the hard way and stress and agitation fires up the old GERD. I came home. Took photograph of my appointment card, and emailed it to them. By now, I have chewed two antacid tablets.
2 hours later, I get this weak, wishy-washy excuse that Simon, my physiotherapist deleted the appointment. How he has access my exercise therapists' calendar is beyond me.
So, here I am, trying to stay calm. Even took a short nap. But I am still gritting my teeth. If *I* cancelled an appointment without notifying them, I would get charged some fee. But they can do it to ME and I just have to let it slide.