Yes, nice to know that you wanna subscribe!
You can choose credit card directly in the payments page.
When you click "Credit Card", the page you automatically request more information (as in the figure below).
Just access mindthegraph.com/payment, log in and subscribe.
You also can pay via Paypal.
Please keep in mind that as a subscription, the plan has automatic renewal. But you can cancel anytime at no extra cost.
Feel free to contact us anytime writing to email@example.com