[QC] Viettel trien khai cac goi mua them luu luong truy cap internet toc do cao cho thue bao Mimax, Dmax, Dmax200. Soan MAX10 gui 109 de mua them 100MB chi voi 10.000d. Soan MAX20 gui 109 de mua them 300MB chi voi 20.000d. Soan MAX30 gui 109 de mua them 500MB chi voi 30.000d. LH 1818 (200d/phut). Tu choi tin, soan TC gui 199