Do you have a set time for the sessions OP?
I've been going to college in the evenings and our class runs from 6pm-9pm.
We have a 20 minute break during that time, which is fine, but as the course went on a lot of people started leaving after the break, or were wanting to finish early so we could go for drinks to celebrate various birthdays and occasions etc. At Christmas we agreed we would go out after the last class had finished and the woman organising that booked the table for 6:45pm.
When we have stayed to the end, the last part of the lesson includes role-play sessions and more than a few people have decided just to chat through it, or play on their phones, or slump over the desks saying they weren't in the mood.
Some people have had this course paid for, others have had to pay a lot of money to be there.
I'm one of the people who paid, and also one of the people who really wants to go on to the next level. I don't want to be finishing early to go to the pub or working with a group of people who week after week keep saying they can't be bothered.
I am very possibly a Lisa but I don't care. I signed up to learn something, learn as much as possible in the time allowed, and work towards a new career, not to sit and have a chat and slope off to the pub halfway through. We have all chosen to be there one evening a week, some of us have paid a lot of money to be there, nobody has been forced to carry on with the course if we've decided it's not for us, either through this year or to go on to next year.
A lot of them kept saying "we could do all this in an hour, I'm meeting my sister/want to go to the gym/feel too tired today" but how they expect to learn the theory, have any tutorials necessary, and then put in the essential role play time in an hour is beyond me.
It's a course that improves by discussion and participation and the skills practice role pay is a massive part of it. And if they don't want to carry on, fine, but they were making it much harder for the people who did want to carry on and actually spent our class time in class learning something.
They are also the people who, at the end, hadn't met their criteria, finished their work folders, or completed enough skills practice sheets. So they've taken up a lot more than their fair share of time at the end getting extra help because they haven't bothered to put the effort in, not in class or at home with the learning journals we had to keep each week.
Your time in class is your time in class. You've agreed to be there for a set amount of time, possibly paid to be there, you should have your full amount of time there to learn and discuss whatever it is you are there for.
I don't know why people bother to do something like this if they spend all their time trying to leave early to do something else.
YANBU, and if you feel they have been bullying you just because you want to spend the time in class learning and they want to do as little as possible so they can go home early, then yes, I would put a complain in about them, as it is going to affect you and how you feel in class from now on.
I'm sorry they have done this to you. 