Before you click the 'Buy Now' Button, Fill the boxes that are on the top of the button, then click it.
Step 2 - Log in to PayPal
When you get in here just put your PayPal Email & Password, Then click the log in button.
Step 3 - Send the Payment
Once you're here first click on ''Type you're PSN sing in codes here'' and type you're psn sing in codes (your email and password). After you done that click on pay now.