For the Team and Developer plans, billing details such as the billing contact and credit card information can be managed from the manage subscription page.
To edit the billing contact, click edit in the Billing Contact section.
To edit the billing address, click update payment details, then in the window that opens click Edit Subscription and follow the steps on screen.
To edit credit card details, click update payment details, then in the window that opens click Edit Subscriptionand follow the steps on screen.
For the Enterprise plan, contact your MyGet account manager.