To pay for an item you will need to use PayPal. If you don’t already have a PayPal account, it’s easy to register.
If you don’t want to register with PayPal, you can use a credit or debit card on the PayPal site.
To do this, look for the link on the bottom left of the PayPal log in screen that reads “Don’t have a PayPal account?” Use your credit card or bank account (where available) and click ‘Continue’.