If you're on mobile, head to your account by clicking on the menu icon on the top left hand corner of your screen. When the menu pops up, click on the Sign In icon (a body outline).
On desktop, click the My Account icon on the top right hand side of your screen. Once signed in, click on the My Account dropdown and navigate to Order History. Here you will then be given a summary of your latest orders, including the status. If your order was declined this will not be listed.
PLEASE NOTE: If you do not have an account and checked out as a guest, you will need to wait for your shipping email to track your order. When you place an order you will get a confirmation email first, and then you will get a shipping email when the item has been shipped and on it's way to you. There is a "tracking reference" link on the shipping email which you can use to track your order on the carrier's tracking site.