Checkmark all items on your cart page and submit.
This will lead you to the confirmation page.
First thing you have to do is fill in your country.
The Take photo option gives you QC photos and costs about $0.25.
Drop shoes box is self explanatory, and so is measure size.
If you need your item really quickly you can buy priority purchase.
You can also apply coupons here.
After choosing what options you want you can submit to buy.