In this link you will be able to make payment of the deposit to guarantee your reservation.
Payment can be through your PayPal account or with your debit or credit card.
It's to simple. Just the following steps.
Click on the yellow bottom Buy Now
Insert the value and click in CONTINUE
If you have an Paypal account you can use this. Just do the login.
If don’t, you can pay with your credit or debit card. Click in Pay by Debit or Credit Card.
Then, just do confirm the value and insert the information requested.