I received a short message asking me to charge my phone bill in these two days. Is it true to charge 50 yuan 100 yuan and 200 yuan 100 yuan? And my cell phone number. ...

First, see what number sent you the message. If it is sent by a customer service number such as 10086, 100 10, it is true. Generally, the prepaid phone bills are returned monthly, and the activities of giving gifts are generally limited to the business hall. You can't find any information at this number. You can check such information in the business hall.