In an interview, a client reflected that: "Viettel charge is not clear. Sometimes I don't understand why the original account of my mobile subscription reduced for whatever reason, while I absolutely no calls or texting to anyone. Besides, there are times I buy scratch cards of Viettel to recharge the account, but cannot be loaded. Call up the customer care center, then they answer is scratch card has not been activated should not be loaded. Why Starhub selling scratch cards do not load the money market
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