indeed
in the complaint mechanism of operators, the problem is always transferred to the business hall for solution. If it is not solved well, their money will be deducted. Even if you call the Ministry of Industry and Information Technology to complain, the person in charge of the business hall will finally solve the problem.
Therefore, if you want to solve this problem, you should negotiate well. If you want to vent your anger, you can complain to the operator's customer service and the Ministry of Industry and Information Technology, and you can also sue.