CALL CONFIDENTIALLY: (+84) 243 5624709 Ext 10 (call can be made anonymously 24 hours a day)
EMAIL CONFIDENTIALLY: Hotline@Halcom.vn
WRITE CONFIDENTIALLY: Halcom Hotline,9th Floor, Hoa Binh Tower,106 Hoang Quoc Viet Str., Cau Giay Dist., Hanoi, Vietnam (letter can be sent anonymously)