What if the maintenance master of the property charges privately?

Owners can complain to the owners' committee if they encounter the problem of unreasonable charges in the management of property companies. Before complaining, the owner needs to prepare sufficient evidence, such as the payment receipt of unreasonable charges by the property company and the payment transaction record of WeChat Alipay. After preparing the relevant evidence, the community owners can bring their ID cards and relevant evidence materials to the owners' committee to complain.