VinaPhone, Viettel started cutting one-way communication with subscribers not adding information
from june 1, 2018, vinaphone started cutting away the communication of mobile subscribers who did not update, supplement information and portraits according to regulations despiteWarning: Crooks can take advantage of adding online information to hijack user numbers
for the convenience of customers, large operators have opened applications that allow customers to check and change mobile prepaid mobile information online. however, this form is