My friends in Zhongshan, Guangdong, please give me a favor

1) Dial China Mobile’s customer service hotline 10086 and press 1 and then 0 to find manual service to check your service life! 2) When you go to the local China Mobile business hall to pay the phone bill, there is a number of "Internet Age" in the upper right corner of the phone bill, which is the service life of your mobile phone card! 3) Go to the local China Mobile business hall and ask the staff to check it for you.