First of all, you must attend the next class. Next class, tell the teacher that you were ill, so you didn't go before. Of course, generally speaking, it's not that easy to fool. So you go to the school hospital tomorrow, say that you have a stomachache and are sick or something, and write a sick note. Then find a counselor and get a certificate from the hospital police.

If you are too lazy to do this, then hang up. However, I remind you that this kind of thing is easy to ride, and it will hang up a lot if you are not careful, and then you will be forced.