Your payment is processed using PayPal. You can either use your PayPal wallet or use a credit card that will be processed by PayPal. If you wish to just pay with credit card, click “Pay with Debit or Credit Card” Option when the PayPal screen appears. You do not need a PayPal account, and the credit card will be securely processed as a guest.
You can find out more about PayPal here: https://www.paypal.com/us/webapps/mpp/how-paypal-works/overview