How to cancel a App Store payment?

I recently tried to buy Wipeout on my iPhone using the App Store, and my card declined the purchase because I happened to not have the funds to buy it. And now whenever I even try to UPDATE my current apps, this popup keeps asking me to confirm my payment method - and it has me stuck, how do I stop this? How can I cancel it out?

Http://www.apple.com/support/mac/app-store/

No way - your account is blocked now. Add an new card or reconfirm old card to proceed forward.

I got a bill from Apple. I do not own anything made by apple. How do I take care of this?

I received an email with a tax invoice for the purchase of "Adventure Town" items totaling $51.98, ordered from an iPhone 6. A) I never ordered them, and B) I don't own an iPhone 6. This had to have been sent to my email in error. Do not send me anything like this again. If I find that you tried to get payment for products I never ordered, I will take legal action. This comes off like a scam.