[ Cell Phones & Plans ] Open Question : Why cant i download any apps directly from my iphone 3G?

I can't buy any apps or upgrade them. It won't even let me buy things for my apps. I tried using a iTunes card yesterday. But it didn't work. I already restarted iTunes all over on it but it still doesn't work. Any help? Thanks in advance!

Source: http://answers.yahoo.com/question/index?qid=20110528055900AA5YGBb

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