[QC] Tu 1/4/2012, Viettel cungcap goi cuoc Mimax (truy cap Internet khong gioi han) cho thue bao hoc sinh, sinh vien chi voi 20.000d/thang. De dang ky, soan Mimax gui 191. Luu y thue bao phai su dung 3G. Neu dang ky trong 4/2012, Viettel van tru cuoc 40.000d va se cong lai 20.000d trong thang 5/2012. Chi tiet goi 1818 (200d/phut). Tu choi tin nhan 199, soan TCgui 199
