Tags telecommunication sector Viettel launches largest customer care programme Tuesday, Jun 18, 2019 Viettel Telecom Corporation on Tuesday in Ha Noi launched Viettel ++, the largest customer loyalty programme in the telecommunication sector so far, which could serve its 70 million users. Viettel’s revenue from overseas investment reaches US$1.7 billion Friday, May 04, 2018 Viettel Group’s revenue from its overseas investment in 2017 surged by 38 per cent from the previous year to reach VND38 trillion (US$1.7 billion).
