Viettel Business Solutions Corporation

• No 1 Tran Huu Duc Street, Nam Tu Liem Ward, Hanoi, Viet Nam
• Customer care:   0985538080
• Email:   cskhdn@viettel.com.vn
• Tax Code:  0100109106-476
• Zalo:  Viettel Solutions
• Telegram:   098.553.8080
• MyViettel Enterprise:   https://mve.viettel.vn