How to open and cancel the 4G monthly traffic package service?

It can be opened or cancelled through telecom business hall, telecom network hall, Huan go client, Yixin hall, WeChat hall and SMS. The SMS mode is as follows: (1) Edit SMS Introduction 474 1 or JS4GBYB Transfer 1000 1 Domestic traffic monthly. (2) Edit the short message 4742 10 or 4GBYB 10 to turn 1000 1 open 10 yuan package 100M domestic traffic package; Edit the short message 474220 or 4GBYB20 to 1000 1 to open the 300M domestic traffic packet of 20 yuan packet; Edit the short message 474230 or 4GBYB30 1000 1 Open the 500M domestic traffic packet of 30 yuan Packet; Edit SMS 474250 or 4GBYB50 1000 1 Open 50 yuan Packet 1G Domestic Traffic Packet; Edit SMS 474270 or 4GBYB70 to 1000 1 to open the 2G domestic traffic package of 70 yuan package; Edit the short message 4742 100 or 4GBYB 100 to1open 100 yuan 3G domestic traffic package. (3) Edit SMS 4743 10 or TD4GBYB 10 to 1000 1 Cancel 10 yuan Package 100M Domestic Traffic Package; Edit SMS 474320 or TD4GBYB20 to 1000 1 to cancel the 300M domestic traffic packet of 20 yuan packet; Edit SMS 474330 or TD4GBYB30 to 1000 1 to cancel 30 yuan packet 500M domestic traffic packet; Edit SMS 474350 or TD4GBYB50 to 1000 1 cancel 50 yuan packet 1G domestic traffic packet; Edit SMS 474370 or TD4GBYB70 to 1000 1 to cancel 70 yuan Package 2G domestic traffic package; Edit SMS 4743 100 or TD 4gyb 100 to1cancel100 yuan 3G domestic traffic package. Click "official website" Customer Service 22 1 below for more service offers.