Don't worry yet.

Has your order arrived yet?

If there is no delivery, you can click Help at the top of the page, and then click Contact Us on the right side of the screen to contact customer service to see if it can be modified.

It doesn't matter if the general billing address is filled in for transshipment. But you should pay attention to the mail. If there is an email saying that you need to provide a real billing address, please provide it.

Amazon is very friendly, and the billing address doesn't matter, as long as it's not sent to the wrong address.