I bought an unlocked cell phone, and because cell phone companies always add extra charges to the bill, I signed up for a pay-as-you-go-phone, paying for voice and data charges. I bought a bill of goods when I bought the phone as its an international phone, with vodaphone, bought from GSMonster in N.Y. AT&T would not honor the data portion of usage - they sold time to me and wouldn't let me use it??? I told them it sounded like fraud, and told them I would file charges if they didn't give me those air time credits onto my voice plan, which they finally did. If I hadn't gotten rude, they wouldn't have done it!