Payments are made through PayPal, the easiest and safest way to pay online. However, it is not mandatory to open a Paypal account to make purchases, you can just use your regular credit cards (VISA, Mastercard or American Express).
To process your payments, PayPal sends us some of your personal information: your contact information and the fact that you have or not a verified bank account. However, your credit card number or your bank account number are not revealed to us. If disclosure of your personal information worry you, click here to learn more about the security measures put in place by PayPal.
Link to learn more about PayPall
https://www.paypal.com/us/webapps/mpp/how-to-use-paypal