Does this mean i have my iphone from amazon?

So i used this gift card to buy a 500 dollar iphone 5 unlocked. I did the payment info and stuff. And it went through. I guess? I never had 500 dollars on the card, thats the weird part. It gave me a time of when it would arrive, my address, and the email confirmation. Does this mean my phone will arrive? Does this mean this is final, there's no way the order can be declined now?

It will use your other credit card