How to open short message GPRS monthly subscription for Yichun mobile phone users

Hello, I'm from Jiangxi Mobile. According to your girlfriend's situation, I can only handle the data traffic package, but the traffic is relatively small, 5 yuan 30M, and the rest are the same as those in other provinces and cities. The SMS processing methods are "2501"in 5 yuan and "2511"in 20 yuan. Send it. Ask if you don't understand!