doi diem - Viettel Cong Cong la chuong trinh CSKH Viettel dac biet danh rieng cho nhung khach hang than thiet tu nha mang Viettel. Khach hang khi su dung cac dich vu tu di dong, truyen hinh hay internet se deu duoc quy doi ra cac diem tich luy. Dua vao so luong diem tich luy Viettel, khach hang se duoc xep hang hoi vien tuong ung va duoc huong nhung quyen loi, uu dai dac biet. Ngoai ra, khach hang se hoan toan co the doi diem tich luy sang cuoc di dong, phut goi, data, sms, voucher dich vu.

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