A1 technician came to service our AC unit today at...

A1 technician came to service our AC unit today at 2:30 pm. He inspected our unit and left. At 5:30 pm I noticed, my air conditioning was still running. I looked at my thermostat, it showed 81 degrees. Btw, we paid for the service call.
We've called them xs 2 this evening. It's now 10pm. No one has come to fix my AC. It's now 82 degrees in my house! I'm VERY upset.