I received a short message about 25 yuan's movie-watching activities. What kind of activity is this?

This is a preferential activity launched by China Telecom for Tianyi campus line users. Users of Tianyi Campus Line can log on to the mobile phone client of Campus Line and snap up the movie tickets for the specified events. Limited quantity, first come, first served. See the programme of activities for other contents. Thank you for your interest in telecom products. I wish you a happy life. If the above information can't solve your problem, you can also log in to Guangdong Telecom Mobile Mall () to seek help from online customer service, which is available 7X24 hours a day!