Our school charges 100 yuan for "home-school communication" messages every year, but the number of messages received in a year is always less than 20.

All the money was given to the telecommunications company, but some of it was indirectly given to the school. Generally, telecom signs a contract with the school, and the school is responsible for students to use this business, depending on how much telecom pays the school regularly. If you really can't stand it, only you can respond to the leadership, which may not be effective. As long as this kind of thing is made public, it will definitely be cancelled, because schools can't force students to buy unnecessary business.