How can I tell my parents that I have charged all the class fees?

If the class fee is collected, you can inform everyone in the group as follows:

1, the class fee has been collected, and the teacher successfully completed the task. Thank you very much for your parents' active cooperation with the teacher. Thank you very much.

Thank you for your cooperation. The class fee has been collected. Thank you again for your support.

Thank you for your cooperation. The class fee has been collected.

Thank you for your cooperation. Because of your cooperation, the class fee can be collected so quickly.

In a word, thank you for your support to all the teachers in our class. Thank you!

As the head teacher of Class 3, I don't seem to know what to say, but I can only say thank you. Thank you very much for your support for our class work.