Although there are three major communication enterprises in China, they are essentially monopolized. Mobile tariffs have been criticized by many people, and some phone bills have been deducted completely inexplicably.
In recent days, China Mobile is engaged in the activity of sending short messages to send traffic, the purpose of which is to firmly bind old customers.
In short, don't be fooled easily again. Regarding your question, you can call 10086 first to respond. If you don't handle it, you can call the National Development and Reform Commission or the Industry and Information Committee to complain.