If you have the invoice number or the amount to pay, them please click "Buy Now" and make a payment. You don't need a paypal account to pay using credit or debit card.
Click on "Buy Now" them fill out description and price and click on "Continue"
Login to your paypal account and make a payment. IF YOU DON'T HAVE A PAYPAL ACCOUNT CLICK ON "Pay with Debit or Credit Card"