Title: STI is the worst service carrier ever.
Product review: STI is the worst service carrier ever. I called twice to make sure they can transfer the promotional air minutes to another existing account. But after I activated my cell phone, they ate their words.At the same time, I found whenever I made a phone call, they charge me once the phone call is connected, even though no one answers the phone. This is one of their hidden charges.My experience is so bad, I will never use their service again.
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