How can people treat a 9 month pregnant women with such disrespect?

Location: Other, Sacramento
Industry: Health
Annoyed By: Western Dental

My 9 month pregnant friend went to W.D. to get some work done that was approved by her OBGYN who even wrote a note. Called and made an appointment, waited for 4 hours after her appointment time in the waiting room til her name got called, even after the walk-ins who were clearly not before her, to wait another 45 minutes til she got seen and for what.... to end up with teeth looking dead since they used color filling (BLACK) and a bruised mouth?? Even the manager on duty was rude, when asking why she has been waiting for so long the manager told her "because they were here before you" Then on top of that before they did the work they told her they weren't sure if they wanted to because they so called "cared about the baby's health". If they honestly did, i dont think they would of made a pregnant women sit in the uncomfortable chairs for over 4 hours. But maybe i just have a different view of what customer service really is.