I think I accidentally bought something online?

Hi, ok so just a few seconds ago I was looking on amazon to buy a cute iphone 4s case for my iphone. I decided to use my american express giftcard and clicked on the one I wanted. I made sure everything was right and I clicked the order now button. A screen popped up saying thanks for ordering with us blah blah blah… Until I saw the price on the gift card… It was 25 dollars and the order was over 25 dollars because of the shipping! Now I'm scared that I ordered something and they are going to charge me extra. I didn't put in any of my parent's credit card numbers, only my giftcard number. But I'm still scared since it asked for my phone number and I put my phone number in… Help? Do you think they are going to charge me for this.

It is common knowledge that if you buy something from Amazon that you can't afford, you will go to jail.

I don't think if you have enough money it will send. So i think your safe.