Canceling classes..

I’m in my work first week of phlebotomy school, and our teacher has canceled twice. We only go four days a week and then she’s already let us know that we’re gonna have to reschedule another class week after next. I just feel like we paid for the course so she should show up. Also, she’s a little lackadaisical, and she’s on her phone a lot. When we have a break. She stays gone for 40 minutes instead of 30 minutes. I’m concerned because some people are struggling and this could hinder them. Reason for this rescheduled class is because it was her birthday and she was too tired to come to class. That being said, she is a very nice lady. Because of the information I gave some of my classmates might be on here. But I just wanna get some input. I don’t wanna get anybody in trouble or anything.