You can pay by Paypal or Alipay or WeChat Pay.

When using Alipay, registration will be required.
When using WeChat Pay, registrarion and install an App will be required.

If you choose Paypal, you can use your credit card for payment from overseas as well and your Paypal account is not required. If you don't have the account, please click "Create an Account" on the Paypal website. You can make payment without registration.