I can't but anything off my iphone?

I uprgraded my iphone 4 to the 5s (the 4 broke) around Christmas time and now I can't buy anything off of it, I have to go on my computer and then transfer it. Everytime I try to buy something on my phone, it asks for security questions which I don't have the answers for And the Change the answers I need to answer the questions!

Maybe you can find the verify by email which you registration the id.

Oh, you will have to verify your card…

Try downloading an app from the "App Store". Does it allow you to do so, or does it ask you to verify your card details after entering your password?

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