1.After fullfill your shipping information, click the "Continue to shipping".
2.Choose the shipping method, then click the "Continue to payment".
3.Choose the billing address, then click the "Comlete order".
4.If you have the Paypal account, just log in the paypal and pay.
If you don't have a Paypal account, you can click the "Pay with Credit or Debit Card", then you can pay by your credit card.