1. Contact the customer service of China Mobile: If you find that China Mobile forged the customer's signature, you can immediately contact the customer service of China Mobile to explain the situation and provide relevant evidence.
2. Alarm: If China Mobile's behavior involves a crime, the customer can report the case to the local police and provide relevant evidence and materials.
3. Complain to the Consumer Association: If China Mobile's behavior involves consumer rights, customers can complain to the Consumer Association and provide relevant evidence and materials.
4. Complain to China Mobile Company: If the behavior of China Mobile involves the internal management of the company, the customer can complain to China Mobile Company and provide relevant evidence and materials.
In short, if China Mobile forges the customer's signature, the customer can take the above measures to deal with it and keep relevant evidence. At the same time, customers can also report to the local police, so as to pursue the legal responsibility of China Mobile.